Pentair Union Nut C Clip | POSI-CLEAR RP, Clean & Clear RP & SEP Series | 178732Z Bromine The Filter Fiber Stuff is

The Filter Fiber Stuff is non-toxic

transmitting ultraviolet light into the water flow while isolating the lamp from direct water contact

Pentair Part Number 77707-0209 Compatible Equipment Pentair MasterTemp

which can permanently damage the filter media

Pentair Union Nut C Clip | POSI-CLEAR RP, Clean & Clear RP & SEP Series | 178732Z Bromine The Filter Fiber Stuff isThe Pentair Union Nut C Clip (178732Z) is the OEM replacement retaining clip for the union nut fittings used on Sta Rite POSI CLEAR RP, Clean & Clear RP, System: 2 Modular Media, and SEP Series Separation Tank filtration equipment. This clip locks the union nut in place at the plumbing connection point on the filter housing. A missing, cracked, or deformed C clip allows the union nut to back off under system pressure, resulting in leaks at the filter