Bronze Threaded Nipple, 3/4" Pipe, Close Length from GROCO
Bronze plumbing fittings.

Adapter—3/4" BSP Female to 15mm (Qty. 2) from WHALE PUMPS
Just cut the tubing to length and fully push the end into the appropriate fitting. The collet automatically secures the hose. If you ever need to alter the system, the connections can be disassembled and reused. All components are manufactured from nontoxic, food-grade materials and are designed to allow unrestricted flow. To gain the advantages of the Whale system, it is not necessary to replumb your entire boat, as unique adapters enable connection to most boat’s existing plumbing systems.

Acetal Thru-Transom Scupper from WEST MARINE
One-way rubber flapper valve and thru-hull fitting. For 1-1/2"ID hose. Overall length: 6-1/4". Installation hole size: 2". Max.

3-Way Bronze Ball Valve, 1/2" Size (NPT) from APOLLO
Use in place of a "T" fitting to switch between two tanks.

Tee Type Sanitation Hose Fitting, Slip Fitting Thread from SHIELDS RUBBER
Fiberglass-reinforced nylon fittings designed to fit Shields Series 101, 148 and 144 hoses without heating or special tools. Use in sanitation systems, deck drain systems and water tank fill.

Full-Flow In-Line Ball Valve, 1" NPT from GROCO
These in-line ball valves permit unrestricted flow in all sizes. Each features a compact bronze body, chrome-plated brass ball with Teflon seats for long life, 304 stainless steel handle, bonding attachment screw and a drain plug.