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Ships within 48 hours · Estimated delivery Nov 12 - Nov 17
Length: 2010mm
Edgetec 02 Air Injector Grey
Gecko® IN
Lower chemical use
Gasket and Locking Nut
Tecmark Spa Heater Pressure Switch 3903-DF replacement Test Strips Length: 2010mmTecmark Spa Heater Pressure Switch 3903 DF replacement 1 5 psi 7 35kpa adjustable SPST Found in a large number of spa and pool heaters On off device that controls heater operation Utilise a diaphragm to read the water pressure signal to convert to electrical signal Variants: found on near the heater assembly 3902 1Amp, 1 5psi Adjustable, 1 8" NPT 3903 1Amp, 1 5psi Adjustable, 1 8" NPT 3903 BP 3Amp, PSI Factory Set Non Adjustable, 1 8" NPT 3903 DF
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