Spring-loaded check valve, capable of holding a water head equal to 300 PSI. Designed with an ear hole for ease of tying to a floatation device in order to prevent suction of debris. Specifically made for use on the MARK-3®,
BB-4®, Striker II-Plus, Ultra-Striker ® and any other pumps using a 2″ (51 mm) NPSH.
KOC-BS151 Kocheck, 1-1/2″ (38 mm) NH, aluminum
KOC-BS1561 Kocheck, 1-1/2″ (38 mm) NPSH, aluminum
Other threads also available