2 Pack – 12977 O-Ring for Fleck / 17958 O-Ring for RainSoft / FDA EPDM Material

2 Pack – 12977 O-Ring for Fleck / 17958 O-Ring for RainSoft / FDA EPDM Material (Quantity of 2) Replacement O-ring – Part # V3163 for Fleck Replacement O-ring – Part # 17958 for RainSoft Designed for:Fleck: Valves and 3900, 5600Rain Soft: Gold, EC4, RFC,F8c Series • FDA/NSF approved EPDM material O-rings meet food / drinking water contact standards.• Direct fit aftermarket replacement• Made in USA User must install according to manufacturer specifications, improper installation can result in leakage.