SB TS+LS 1 1⁄2" & 2" - Non-return valve with air lock F/M - Backflow preventer, type SB TS (Thermulock)
by Flamco
SKU M58131
Backflow preventer for direct screwing onto the pump head, manually adjustable. Models with and without air lock.
Backflow preventer, type SB TS (Thermulock) - Backflow Preventers | Flamco Group