Simmons Silicon Bronze Check Valve Model & Size:501SB 1/2" 500/min 320

500/min 320

Model BS550 + MP30V Engine type Best & Strong Gasoline Engine Engine Model BS550 Engine Output 5

Anti-slipping mechanism: tool won't start until inner sleeve engages with bolt tip

Vertical Gasoline Engine Model B&S675EXi Max

Backward compatible

Simmons Silicon Bronze Check Valve Model & Size:501SB 1/2" 500/min 320Simmons 501SB Silicon Bronze Check Valve Silicon bronze cast poppet Silicon bronze components contain less than 0. 05 percent (1 20 of 1 percent) lead All check valves furnished with Buna N O ring, stainless steel spring, stainless steel washer and stainless steel locknut Model Size Price 501SB 1 2" 2,355. 00 502SB 3 4" 2,580. 00 503SB 1" 2,915. 00 504SB 1 1 4" 3,810. 00 505SB 1 1 2" 4,820. 00 506SB 2" 8,515. 00 507SB 2 1 2" 33,600. 00 508SB 3"