ID 1/2 inch 50 FT water heater hoses SAE 20R3 black epdm rubber use for auto engine coolant system
Application of water heater hoses 1.Designed for heater hose applications where resistance to antifreeze coolants and underhood temperatures are required.
2.Designed for heater hose applications where an OEM or SAE specification is required. SAE Black Heater Hose is certified to meet or exceed all the hose and material testing requirements of SAE 20R3-D2 with good resistance to heat and compatibility with all common engine coolants.
WARNING Do not use for fuel or oil transfer applications
water heater hoses
1.Unaffected by most coolants and non-oil based coolant additives and by high cooling system pressures
2. Good resistance to high temperatures for extended periods of time
3. Similar to SAE 20R3 Class D-2
4. Temperature rating: -40 Deg. F to +257 Deg. F (-40 Deg. C to +125 Deg. C)