Flow Switches

Spa and hot tub flow switches

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24v Solenoid Flow Control Valve - Gas Heater

SKU: 24vsolenoidvalve

24v AC, 50Hz solenoid gas flow control valve Theaded both ends 3/4" / 20mm thread....

6 In Stock

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Artesian Spas / LA Spas flow switch

SKU: artesianop24-0027-71

Artesian Spas / LA Spas flow switch used with Gecko MSPA-MP spa packs - 3 pin plug. Also marked Harwil Q-12DS-C2 3/4" ribbed barb connections plus 3/8" ribbed barb 3rd connection which can be plugged if not...

1 In Stock

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Dimension One Spa Harwil Flow Switch Mechanism

SKU: d101710-131

Harwil flow switch mechanism used on Dimension One Spas - Electrical connector is 2 wire / 2 pin for Dimension one Spas applications...

1 In Stock

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Dimension One Spas, Ramco, Evolution M-1 Spa Flow Switch Grid Control - 1A

SKU: m-1

Usually found fitted to Dimension One Spas with Crystal Pure Water Management Systems in the early to mid '90's. 1.5" sockets 1A switch rating 2GPM on / 0.8 GPM off...

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Ethink KL8800 series H220 Flow/Temperature Sensor Union Assembly

SKU: ETH220FL

Ethink KL8800 series and KL8-3A series heater flow / temperature sensor union assembly For use with H220 heaters only 1.5" / 40mm plumbing 1.5" / 40mm pipe glues into one end, with the other threaded to the ...

6 In Stock

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Ethink KL8800 series H3800 Flow/Temperature Sensor Union Assembly

SKU: ETH380FL

Ethink KL8800 series and KL8-3A series heater flow / temperature sensor union assembly For use with H380 heaters only 2" / 50mm plumbing 2" / 50mm pipe glues into one end, with the other threaded to the inle...

13 In Stock

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Harwil Flow Switch 3/4" Barbed Tee

SKU: hq34-0221

Harwil flow switch 3/4" barbed tee assembly used on numerous spas Harwil Q12DS-C2 switch mechanism threaded into barbed tee body...

6 In Stock

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Harwil Flow Switch Replacement Mechanism 0.75" MPT thread

SKU: hq34-0221A

Harwil flow switch replacement mechanism used on numerous spas - 3/4" MPT thread - screws into barbed Tee fitting (outside diameter of thread is 26.5mm - 3/4" NPT thread) Harwil Q-12DS-C2 flow switch mechani...

2 In Stock

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Harwil Q-12 Spa & Pool Water Flow Switch

SKU: harwilq12

Harwil Q-12 Spa & Pool Water Flow Switch Pilot duty extra low voltage only. 1/2" NPT thread (21mm OD thread) Maximum length of submersion from top of thread/underside of nut - 66mm Length of submersion ...

2 In Stock

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Harwil Q-8 DS Spa & Pool Water Flow Switch

SKU: harwilq8

Harwil Q-8DS Spa & Pool Water Flow Switch 15A, 12V-240V AC/DC 5-80 GPM range suits 1.5" and 2" pipe sizes, 1" NPT thread Manufactured from Noryl, 316 & 301 stainless steel and Viton...

1 In Stock

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Sundance Spas Flow Switch - Harwil

SKU: sd6560-860

Flow switch designed for use with low flow circulation pumps Extra low voltage only 3/4" barb tee body Used on Sundance Spas, LA Spas, Hot Spring Spas, and others using low flow circulation pumps for heating...

12 In Stock

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Waterco FlowCheck Flow Switch / Check Valve 40mm

SKU: wc85540

Waterco flow switch with check valve. Low voltage, pilot duty flow switch contacts for use with low voltage control systems with heaters, etc 40mm / 1.5" sockets....

3 In Stock

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