Gasket cupper 1/2" crushable
SKU: L505bCRUSHABLE COPPER WASHER 27,5x21,5x3mm (1/2")
For positioning the couplings
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For positioning the couplings

This valve prevents water from flowing back from, for example, the boiler or heat exchanger.
Non-return valve for use in an HX machine.
Connection: 2 x 1/8" BSP male
Length: 47.5mm including thread, 33mm without