Dynamic Series Filter Lock Ring made by Pentair R172214

The Locking Ring is used on the following items:

• Dynamic Series V
  • DSC 75, DSC 100 TOP LOAD IN LINE CARTRIDGE FILTER
• Dynamic Series II & III RTL/RCF
  • TOP LOAD IN LINE CARTRIDGE FILTERMODEL RTL/RCF 1-1/2 IN. & 2 IN. HIGH FLOW
• Dynamic Series I
  • DYNAMIC SERIES 1 INLINE CARTRIDGE FILTER MODELS: RDC-25 & RDC-25S, RDC-50 & RDC-50S
• Rainbow Automatic Feeders
  • HIGH CAPACITY AUTOMATIC FEEDERS MODELS HC-3315, HC-3330, HC-3340
• Predator II Mini-Cellular Media Filter
• Leaf Trap
  • MODEL 179/179C