AquaDyne Heavy Duty RHINO II 4" Bottom Drains Replacement Part 000 SPEHS1016 Pressure Gauge All Lighthouses without Base Lighthouses 000 SPEHS1016 Pressure Gauge All Sizes PTPF025PLUGORING Lid Air Relief Threaded Plug & Rubber Washer All Sizes PFLIDBLKORSET Black Filter Lid & Lid Seal All Sizes of Current Models PTPFORING Seal for Filter Lid All Sizes of Current Models K1MBFPKIT15V3US Plumbing Kit K+3000 & K+4800 Models (16" 20" Diameter) K1MBFPK20V24US Plumbing Kit SKU UPC Code Description 40027 827807400273 Lake Treatment Booster Packs All Rhino drains are made from Schedule 80 PVC and are thermal welded by hand to assure top quality dependable welds injection molded products are typically designed to use minimal quantities of raw material to produce products in shape and form at the minimum amount of cost