20mm Vented Loop SKU VL AU$0.00 In stock Quantity: 1 Add to Bag Product Details Skin Fittings & Marine Products | Vented Loop Prevent back siphoning from your water systems with this vented loops available for sale online. Include this in you engine exhaust system or for plumbing for bilge pumps for marine vessels. VL20 20 20mm Vented Loop Ea VL25 25 25mm Vented Loop Ea VL38 38 38mm Vented Loop Ea VLSPARE Vented Loop Spare Valve & Cap Ea Save this product for later Favorite