Brass Tank Outlet 4" with Left Handed Nut Thread 3/8" Anka Check Valves are a

Anka Check Valves are a spring-loaded non-return valve which can be used in a variety of cold water applications including irrigation

The Grundfos CM Booster is designed for delivering rainwater or boosting mains water pressure into the home from above ground tanks

Philmac Threaded Tee 50mm (2") - Threaded poly fitting

Brass ¾" x ¾" x ¾" Compression Tee - Copper compression fitting with nylon olives

Brass Tank Outlet 4" with Left Handed Nut Thread 3/8" Anka Check Valves are aBrass 4 Tank Outlet with Left Hand Thread Brass tank outlet with left hand thread. Because the thread tightens the opposite way to normal BSP thread the tank outlet tightens as you screw a fitting onto it.