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	# Item	Inlet 1/8" Male NPT 1/4" Male NPT 3/8" Male NPT 1/2" Male NPT	Outlet 1/8" Male NPT 1/4" Male NPT 3/8" Male NPT 1/2" Male NPT	Cracking Pressure No Spring 1/3 psi 1/2 psi 1 psi 2 psi 2.5 psi 3 psi 3.5 psi 5 psi 6.5 psi 10 psi 20 psi 25 psi	Spring Material No Spring 302 Stainless Steel	Seal Buna-N EPDM Neoprene Viton	Material Brass Nickel Plated Brass Stainless Steel
	Item#: COF-4M-3#-BU-SS	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Buna-N	Material: Stainless Steel
	Item#: COF-4M-3#-EPDM-B	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: EPDM	Material: Brass
	Item#: COF-4M-3#-EPDM-NI	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: EPDM	Material: Nickel Plated Brass
	Item#: COF-4M-3#-EPDM-SS	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: EPDM	Material: Stainless Steel
	Item#: COF-4M-3#-NP-B	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Neoprene	Material: Brass
	Item#: COF-4M-3#-NP-NI	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Neoprene	Material: Nickel Plated Brass
	Item#: COF-4M-3#-NP-SS	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Neoprene	Material: Stainless Steel
	Item#: COF-4M-3#-V-B	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Viton	Material: Brass
	Item#: COF-4M-3#-V-NI	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Viton	Material: Nickel Plated Brass
	Item#: COF-4M-3#-V-SS	Inlet: 1/4" Male NPT	Outlet: 1/4" Male NPT	Cracking Pressure: 3 psi	Spring Material: 302 Stainless Steel	Seal: Viton	Material: Stainless Steel