Scotty Low Profile Track 4" 270 this cartridge is designed to

this cartridge is designed to seamlessly integrate with Sealand toilets

Constant 38mm (1-1/2") bore waste path minimises blockages

Designed for use with dual-braided nylon and polyester ropes

MP63Z Zinc 63 mm 1 - 1/2" x 2 - 3/8" 5x20mm

Although no longer required by some yachting authorities

Scotty Low Profile Track 4" 270 this cartridge is designed toThe 440 BK 4 Low Profile Track is made from corrosion proof high strength composite material that will last a lifetime The lowest profile track on the market and a top load design allows for quick and easy setup of all your Scotty Rod Holders and Accessories Easily install Low Profile Track on your kayak, canoe, or any other watercraft Slide the Scotty 438 Gear Head Track Adapter into the track, click in your favourite Scotty Rod Holder or Accessory