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Electronic flow pressure controller of water pump booster pump, automatic water shortage protection switch, intelligent adjustable pressure AT21

price:USD$122.50
discount 70% in 2018-09-21 to 2018-09-23
price: USD$ 85.75
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
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Warm prompt: controller factory will pass water pressure test, water inlet and outlet may be residual water, please rest assured installation.
Open VAT invoice / special invoice, please contact customer service if needed!

Quality workmanship:
1. using epoxy resin high quality circuit board
2. imported original OMRON 16A relay
3. adopt food grade high temperature resistant leather bowl
4. thickening and high temperature resistant shell

Water pump pressure switch with the best control effect!
1. start the pump with water, shut off the water and stop the pump!
2. the water pressure is constant and will not be ignored!
3. stop frequent start: no matter the size of the water pump, water pump will not start frequently!

4. water shortage (water can not be pumped) 10 seconds or so, turn off pump protection!