Model Number

• Cartridge Only (18)
• CSR1 (2)
• CSR2 (2)
• CSR3 (2)
• CSR4 (2)
• CSRH1 (2)
• CSRH2 (2)
• CSRH3 (2)
• CSRH4 (4)
• CSRH5 (2)

Inlet Connection

• 1/2 in (8)
• 3/4 in (6)
• 1 in (4)
• 1-1/4 in (2)

Outlet Connection

• 3/4 in (4)
• 1 in (6)
• 1-1/4 in (6)
• 1-1/2 in (4)

Single/Dual

• Dual (10)
• Single (10)

Brands

• Parker RS (38)