Specialty Valve is a stocking distributor of all the Mid-West backflow testing products.

This includes the soon to be released Mid-West 835 unit that adds field flexibility never before seen in the backflow testing industry. All the Mid-West products have a 5 year warranty as noted and described below. Specialty Valve also keeps a stock of the accessory products to assist the tester, making his/her life easier.

When it comes to backflow Specialty Valve is your one source company you can rely on to have the products, accessories, repair services, and a complete unit recertification program at your finger tips.

	Model 835-5 Standard Specifications: Gauge Type:  Diaphragm Differential Pressure Gauge Dial Size & Range:  41⁄2" 0-15 P.S.I.D./100 kPa DP Gauge with a 11⁄2" Line Pressure Gauge Differential Pressure Accuracy:  ±0.2 P.S.I.D. (Descending) Working ...
	Model 830 Standard Specifications: Gauge Type:  Diaphragm Differential Pressure Gauge Dial Size & Range:  41⁄2" 0-15 P.S.I.D./100 kPa DP Gauge with a 11⁄2" Line Pressure Gauge Differential Pressure Accuracy:  ±0.2 P.S.I.D. (Descending) Working ...
	Model 845-5 Standard Specifications: Gauge Type:  Diaphragm Differential Pressure Gauge Dial Size & Range:  41⁄2" 0-15 P.S.I.D./100 kPa DP Gauge with a 11⁄2" Line Pressure Gauge Differential Pressure Accuracy:  ±0.2 P.S.I.D. (Descending) Working ...
	Model 845-3 Standard Specifications: Gauge Type:  Diaphragm Differential Pressure Gauge Dial Size & Range:  41⁄2" 0-15 P.S.I.D./100 kPa DP Gauge with a 11⁄2" Line Pressure Gauge Differential Pressure Accuracy:  ±0.2 P.S.I.D. (Descending) Working ...
	Model 845-2 Standard Specifications: Gauge Type:  Diaphragm Differential Pressure Gauge Dial Size & Range:  41⁄2" 0-15 P.S.I.D./100 kPa DP Gauge with a 11⁄2" Line Pressure Gauge Differential Pressure Accuracy:  ±0.2 P.S.I.D. (Descending) Working ...
	Compare Units 845 and 830 For the past 30 years Mid-West Instrument has been producing Quality Backflow Test Kits. Our Model 830 has been the benchmark of the industry for decades. Constant input from field testers led to refinements such as inline filters, laminated test procedures, removable lids, ...