![attwood-1500x1500](https://www.rhsboating.com.au/images/com_hikashop/upload/attwood-1500x1500.jpg)  Explore Attwood marine accessories for boat maintenance and refit projects. RWB's catalogue features vented deck fills in different configurations, cap styles and finishes. When replacing a filler, consider the tank application, filler and breather hose sizes, mounting footprint and available clearance. Selecting the correct configuration helps integrate the new fitting with your existing system. Explore the Attwood listings at RHS Boating & Marine for product details and available options.

           [ ![RWB4106](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/RWB4106.jpg "Nairn Nylon Inspection Port - Black with clear lid - 125mm (5 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-125mm-5-inches-opening.html)

   $23.34  each    [ Nairn Nylon Inspection Port - Black with clear lid - 125mm (5 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-125mm-5-inches-opening.html)      [ RWB4106 ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-125mm-5-inches-opening.html)

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   [ ![RWB4114](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/RWB4114.jpg "Nairn Nylon Inspection Port - Black with clear lid - 150mm (6 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-150mm-6-inches-opening.html)

   $26.42  each    [ Nairn Nylon Inspection Port - Black with clear lid - 150mm (6 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-150mm-6-inches-opening.html)      [ RWB4114 ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-black-with-clear-lid-150mm-6-inches-opening.html)

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   [ ![RWB4103](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Nairn Nylon Inspection Port - White with clear lid - 100mm (4 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-100mm-4-inches-opening.html)

   $20.11  each    [ Nairn Nylon Inspection Port - White with clear lid - 100mm (4 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-100mm-4-inches-opening.html)      [ RWB4103 ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-100mm-4-inches-opening.html)

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   [ ![RWB4107](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Nairn Nylon Inspection Port - White with clear lid - 125mm (5 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-125mm-5-inches-opening.html)

   $23.34  each    [ Nairn Nylon Inspection Port - White with clear lid - 125mm (5 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-125mm-5-inches-opening.html)      [ RWB4107 ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-125mm-5-inches-opening.html)

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   [ ![RWB4115](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Nairn Nylon Inspection Port - White with clear lid - 150mm (6 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-150mm-6-inches-opening.html)

   $26.42  each    [ Nairn Nylon Inspection Port - White with clear lid - 150mm (6 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-150mm-6-inches-opening.html)      [ RWB4115 ](https://www.rhsboating.com.au/categories/nairn-nylon-inspection-port-white-with-clear-lid-150mm-6-inches-opening.html)

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   [ ![RWB4120](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/chatgpt_image_sep_24_2026_09_02_48_am.jpg "Nairn Pry-Out Inspection Port - White - 200mm (8 inches) Opening") ](https://www.rhsboating.com.au/categories/nairn-pry-out-inspection-port-white-200mm-8-inches-opening.html)

   $64.80  each    [ Nairn Pry-Out Inspection Port - White - 200mm (8 inches) Opening ](https://www.rhsboating.com.au/categories/nairn-pry-out-inspection-port-white-200mm-8-inches-opening.html)      [ RWB4120 ](https://www.rhsboating.com.au/categories/nairn-pry-out-inspection-port-white-200mm-8-inches-opening.html)

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   [ ![400356](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/400356.jpg "Nairn Replacement Marine Drain Plug – Boat Plumbing Fittings") ](https://www.rhsboating.com.au/categories/nairn-replacement-marine-drain-plug-boat-plumbing-fittings.html)

   $7.34  each    [ Nairn Replacement Marine Drain Plug – Boat Plumbing Fittings ](https://www.rhsboating.com.au/categories/nairn-replacement-marine-drain-plug-boat-plumbing-fittings.html)      [ 400356 ](https://www.rhsboating.com.au/categories/nairn-replacement-marine-drain-plug-boat-plumbing-fittings.html)

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   [ ![260542](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/260542.jpg "Nairn round slop stopper – Black – Marine Engine Accessories") ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-black-marine-engine-accessories.html)

   $10.57  each    [ Nairn round slop stopper – Black – Marine Engine Accessories ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-black-marine-engine-accessories.html)      [ 260542 ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-black-marine-engine-accessories.html)

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   [ ![260543](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/260543.jpg "Nairn round slop stopper – White – Marine Engine Accessories") ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-white-marine-engine-accessories.html)

   $10.57  each    [ Nairn round slop stopper – White – Marine Engine Accessories ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-white-marine-engine-accessories.html)      [ 260543 ](https://www.rhsboating.com.au/categories/nairn-round-slop-stopper-white-marine-engine-accessories.html)

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   [ ![762171](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762171.jpg "Narva 12 Pin Flat Trailer Plug Hardware Parts – Boat Deck & Cabin Hardware") ](https://www.rhsboating.com.au/categories/narva-12-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)

   $35.75  each    [ Narva 12 Pin Flat Trailer Plug Hardware Parts – Boat Deck & Cabin Hardware ](https://www.rhsboating.com.au/categories/narva-12-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)      [ 762171 ](https://www.rhsboating.com.au/categories/narva-12-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)

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   [ ![220175](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/220175.jpg "NARVA 12 Way Marine Fuse Box – Boat Electrical Accessories 220175") ](https://www.rhsboating.com.au/categories/narva-12-way-marine-fuse-box-boat-electrical-accessories-220175.html)

   $132.25  each    [ NARVA 12 Way Marine Fuse Box – Boat Electrical Accessories 220175 ](https://www.rhsboating.com.au/categories/narva-12-way-marine-fuse-box-boat-electrical-accessories-220175.html)      [ 220175 ](https://www.rhsboating.com.au/categories/narva-12-way-marine-fuse-box-boat-electrical-accessories-220175.html)

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   [ ![490226](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/490226.jpg "NARVA 14" Single Row Marine LED Light Bar – Marine Lighting 490226") ](https://www.rhsboating.com.au/categories/narva-14-single-row-marine-led-light-bar-marine-lighting-490226.html)

   $252.78  each    [ NARVA 14" Single Row Marine LED Light Bar – Marine Lighting 490226 ](https://www.rhsboating.com.au/categories/narva-14-single-row-marine-led-light-bar-marine-lighting-490226.html)      [ 490226 ](https://www.rhsboating.com.au/categories/narva-14-single-row-marine-led-light-bar-marine-lighting-490226.html)

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   [ ![490230](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/490230.jpg "NARVA 22" Double Row Marine LED Light Bar – Marine Lighting 490230") ](https://www.rhsboating.com.au/categories/narva-22-double-row-marine-led-light-bar-marine-lighting-490230.html)

   $591.71  each    [ NARVA 22" Double Row Marine LED Light Bar – Marine Lighting 490230 ](https://www.rhsboating.com.au/categories/narva-22-double-row-marine-led-light-bar-marine-lighting-490230.html)      [ 490230 ](https://www.rhsboating.com.au/categories/narva-22-double-row-marine-led-light-bar-marine-lighting-490230.html)

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   [ ![490228](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/490228.jpg "NARVA 22" Single Row Marine LED Light Bar – Marine Lighting 490228") ](https://www.rhsboating.com.au/categories/narva-22-single-row-marine-led-light-bar-marine-lighting-490228.html)

   $419.43  each    [ NARVA 22" Single Row Marine LED Light Bar – Marine Lighting 490228 ](https://www.rhsboating.com.au/categories/narva-22-single-row-marine-led-light-bar-marine-lighting-490228.html)      [ 490228 ](https://www.rhsboating.com.au/categories/narva-22-single-row-marine-led-light-bar-marine-lighting-490228.html)

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   [ ![704009](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/704009.jpg "NARVA 4 Position Key Start Marine Switch (accessories-off-ignition-start)") ](https://www.rhsboating.com.au/categories/narva-4-position-key-start-marine-switch-accessories-off-ignition-start.html)

   $60.24  each    [ NARVA 4 Position Key Start Marine Switch (accessories-off-ignition-start) ](https://www.rhsboating.com.au/categories/narva-4-position-key-start-marine-switch-accessories-off-ignition-start.html)      [ 704009 ](https://www.rhsboating.com.au/categories/narva-4-position-key-start-marine-switch-accessories-off-ignition-start.html)

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   [ ![762140](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762140.jpg "Narva 7 Pin Flat Trailer Plug Hardware Parts – Boat Deck & Cabin Hardware") ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)

   $9.75  each    [ Narva 7 Pin Flat Trailer Plug Hardware Parts – Boat Deck & Cabin Hardware ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)      [ 762140 ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-plug-hardware-parts-boat-deck-cabin-hardware.html)

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   [ ![762042](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762042.jpg "Narva 7 Pin Flat Trailer Socket Hardware Parts – Boat Electrical Accessories") ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-socket-hardware-parts-boat-electrical-accessories.html)

   $11.14  each    [ Narva 7 Pin Flat Trailer Socket Hardware Parts – Boat Electrical Accessories ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-socket-hardware-parts-boat-electrical-accessories.html)      [ 762042 ](https://www.rhsboating.com.au/categories/narva-7-pin-flat-trailer-socket-hardware-parts-boat-electrical-accessories.html)

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   [ ![762161](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762161.jpg "Narva 7 Pin Large Round Metal Trailer Plug Hardware Parts – 762161") ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-plug-hardware-parts-762161.html)

   $17.33  each    [ Narva 7 Pin Large Round Metal Trailer Plug Hardware Parts – 762161 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-plug-hardware-parts-762161.html)      [ 762161 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-plug-hardware-parts-762161.html)

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   [ ![762062](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762062.jpg "Narva 7 Pin Large Round Metal Trailer Socket Hardware Parts – 762062") ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-socket-hardware-parts-762062.html)

   $21.53  each    [ Narva 7 Pin Large Round Metal Trailer Socket Hardware Parts – 762062 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-socket-hardware-parts-762062.html)      [ 762062 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-metal-trailer-socket-hardware-parts-762062.html)

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   [ ![762180](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762180.jpg "Narva 7 Pin Large Round Plastic Trailer Plug Hardware Parts – 762180") ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-plug-hardware-parts-762180.html)

   $11.14  each    [ Narva 7 Pin Large Round Plastic Trailer Plug Hardware Parts – 762180 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-plug-hardware-parts-762180.html)      [ 762180 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-plug-hardware-parts-762180.html)

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   [ ![762052](https://www.rhsboating.com.au/images/com_hikashop/upload/thumbnails/500x500/762052.jpg "Narva 7 Pin Large Round Plastic Trailer Socket Hardware – 762052") ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-socket-hardware-762052.html)

   $14.50  each    [ Narva 7 Pin Large Round Plastic Trailer Socket Hardware – 762052 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-socket-hardware-762052.html)      [ 762052 ](https://www.rhsboating.com.au/categories/narva-7-pin-large-round-plastic-trailer-socket-hardware-762052.html)

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