Heater&Radiator Hose

Detailed Description

SAE 20R3 and R4 Class D1 & D2 coolant hose Premium construction SAE 20R3 and R4 class D1 and D2 is a high quality coolant hose designed to offer extra long service life on automotive and truck cooling system applications. This hose is constructed EPDM tube and cover with two spiral layers of reinforcement. SAE 20R3 D1 & D2 is a Heater Hose, SAE 20R4 D1 is a radiator hose. Both are intended to operate in the range -40°C to +125°C (-40°F to +257°F). Long service life since hoses can withstand the abuse of corrosive additives, ozone and abrasion. Supplied in both straight and custom formed shapes. Part NO. ID(in) OD(in) Working Pressure(PSI) Weight (lb/ft) HH-312-E 5/16 0.630 60 0.14 HH-375-E 3/8 0.690 60 0.16 HH-500-E 1/2 0.770 60 0.17 HH-625-E 5/8 0.910 60 0.2 HH-750-E 3/4 1.050 50 0.24 HH-100-E 1 1.340 45 0.37