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HOR Tecmark 3903 DF Corporation Pressure Switch 1A 1/8"mpt SPST Field Adj P15316498HOR-47-319-1065 https://cdnimages.opentip.com/full/HOR/HOR-47-319-1065.jpg Tecmark 3903 DF Corporation Pressure Switch 1A 1/8"mpt SPST Field Adj Pressure Switch 3903-DF, 1A, Tecmark, 1/8\"mpt, SPST, Field AdjTecmark Tridelta (TDI) ABS plastic Universal Pressure Switch for electric heaters used on spas and hot tubs, 3903. This is a very universal SPST, Normally Open, 1 amp, 1.5 PSI water pressure switch with two 1/4\" standard tab wire terminals (and also screw terminals), Common and NO. 1/8\" NPT plastic water connection threads and case are ABS plastic for corrosion resistance. Tridelta/Tecmark pressure switch 3903 is a very common 1/8\" pressure switch, and fits a variety of spa and pool heaters. Note: Tapered 1/8\" NPT threads to attach the water line or to screw into heater tube or header actually measures 3/8\" OD when measured across the threads. 15316498 0.3000lbs 0.00 0.00 0.00
Tecmark
19.0200 2025-07-09 15 In Stock

Tecmark 3903-DF Corporation Pressure Switch , 1A, 1/8"mpt, SPST, Field Adj

Brand Tecmark
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SKU: HOR-47-319-1065
Price:
$19.02Free shipping on orders over $650 on select HOR- items. Details
Quantity:
15 In Stock
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Product Description

Pressure Switch 3903-DF, 1A, Tecmark, 1/8"mpt, SPST, Field Adj

Tecmark Tridelta (TDI) ABS plastic Universal Pressure Switch for electric heaters used on spas and hot tubs, 3903. This is a very universal SPST, Normally Open, 1 amp, 1.5 PSI water pressure switch with two 1/4" standard tab wire terminals (and also screw terminals), Common and NO. 1/8" NPT plastic water connection threads and case are ABS plastic for corrosion resistance. Tridelta/Tecmark pressure switch 3903 is a very common 1/8" pressure switch, and fits a variety of spa and pool heaters. Note: Tapered 1/8" NPT threads to attach the water line or to screw into heater tube or header actually measures 3/8" OD when measured across the threads.

warning tips WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.

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