Non return valve for 19mm to 25mm hose ~ A simple non return valve that helps keep pumps primed and stops water flowing back into the bilges.
The Whale LV1219 check valve maintains the flush pumps prime and prevents back ~flow. The inline check valve has a non ~metallic construction. This check valve is suitable for use with both manual and electric pumps, and connects to 19mm and 25mm inside diameter hose.