Campbell Brass Check Valve by Campbell Manufacturing.

• Domestic (G1): heavy Lead Free red brass casting, vertical or horizontal — 200 psi WOG, 180°F max
• Imported (G2): LF red brass, LF yellow brass, or stainless steel — 200 psi WOG, 158°F max
• Standard: no tap | CVA: 1/8" inlet tap | CVB: 1/8" inlet + 1/4" outlet tap
• CVC: 1/8" inlet + 1/8" & 1/4" outlet taps | CV-SP: two 1/4" taps | Bremer (BCV): tapered seat with neoprene
• Brass poppet with abrasion-resistant rubber seal | Stainless steel spring | NBR or Viton O-ring
• Select Tap Configuration, Size, and Material from the dropdowns