Best Compact Non pressure Systems

Wika 52295711 Polycarbonate Low Pressure Differential Pressure Gauge with Surface Mount, Type A2G-10, 50\ WC Range, 4-1/2\ Diameter, +/-3% Accuracy, 2 x 1/8\ Hose Barb, Lower Connection

It designed to measure dry, clean non-aggressive gases and air.
It is ideally suited to measure differential pressure in filtration systems.
Pressure monitoring for HVAC, air handlers and ventilation systems and for pressure monitoring of clean rooms, gas scrubbers and dust collection systems.
Silicone rubber, polycarbonate wetted parts.
Mounting: 3 self-tapping mounting screws (standard).

...gauge set is designed specially to measure pressure in refrigeration equipment.
Carry bag is included for convenient storage and easy transpiration.
Manifolds are equipped with large viewing glasses for easy viewing of refrigerant flow, and high-quality colorful pressure gauges ensure accurate readings.
PORTABLE AND COMPACT - Compact design makes this refrigerant recovery machine easy to transport while the design has its own eye-catching appearance.
Durable and reliable, this will quickly become your favorite choice.
HIGH PRESSURE SHUT-OFF FUNCTION - Equipped with a high-pressure shut off switch.
When the pressure inside the system is above 38.5 bar, the compressor will automatically shut off to ensure safe operation.

Protects potable water supplies from being contaminated due to back-siphonage and/or backpressure.
Ideal for non-health hazard applications in continuous-pressure piping systems, at cross-connections and for contaminants at service line entrances.
Compact modular design features a lead-free bronze body.
two in-line independent positive seating check modules.
captured stainless steel springs and replaceable check discs and seats.
Top-entry access and single access cover facilitates in-line repairs.

NOT SUITABLE for R410a air conditioning systems.
PACKAGE - Package includes 1 single stage vacuum pump, 1 bottle of oil, 1 leak detector and gauge set.
Ideal for automotive air conditioning, HVAC work, refrigeration and other applications and industrial requirements that need high vacuum pull from a compact pump.

NOT SUITABLE for R410a air conditioning systems.
PACKAGE - Package includes 1 single stage vacuum pump, 1 bottle of oil, 1 thermometer and gauge set.
Ideal for automotive air conditioning, HVAC work, refrigeration and other applications and industrial requirements that need high vacuum pull from a compact pump.

PACKAGE - Package includes 1 single stage vacuum pump, 1 bottle of oil, 1 leak detector and gauge set.
Ideal for automotive air conditioning, HVAC work, refrigeration and other applications and industrial requirements that need high vacuum pull from a compact pump.

...t for maintaining R134a, R12, R22 and R502 air conditioning systems. NOT SUITABLE for R410a system.
PACKAGE - Package includes 1 single stage vacuum pump and gauge set.
Ideal for automotive air conditioning, HVAC work, refrigeration and other applications and industrial requirements that need high vacuum pull from a compact pump.

Designed for installation on potable water lines to reduce high inlet pressure to a lower outlet pressure.
Integral strainer makes this device most suitable for residential and commercial water systems that require frequent cleaning of sediment and debris.
Direct acting integral by-pass design prevents buildup of excessive system pressure caused by thermal expansion.
Balance piston design enables the regulator to react in a smooth and responsive manner to changes in system flow demand.
Provides protection from inlet pressure changes.
Short lay length and compact design installs in tight spaces.

1 TANKLESS HEATER SOLUTION: Ideal for Releasing Pressure in your Tankless or Closed-Loop Hot Water Systems.
Fully Automatic Valve Reseats Itself after Relieving Pressure.
SUPERIOR QUALITY: Heavy Duty Forged Brass Construction.
UNIVERSAL FIT: Secure, Leak-Free 3/4 in. FIP x MIP Connections.

【Material】 Plastic barb connector, made of high-quality PVED material.
【Size】 1/8" OD One Way Check Valve，Can fit 1/8" hose ID.
【Function】The check valves are applicable for fluid systems to prevent countercurrent liquids, or for pneumatic systems to prevent reverse flow of compressed air..
【Performance】Hose barb check valve’s Opening pressure: 0.5 Kpa, Maximum back pressure: 300Kpa. Normal performance under 25 ℃ to 60 ℃,Strong resistance to acid, alkali, salt corrosion ability.
【Design】The check valve is designed with a non-slip card slot inside, which has strong adsorption performance, prevents falling off, non-toxic, and has air tightness..

STRONG AND RELIABLE, Doheny's Cartridge Filter Systems are engineered with tough and long-lasting thermoplastic materials..
THE PRECISE AND EXTRA-LARGE cartridge filter element is made of non-woven fabrics providing a high degree of water clarity, longer filter cycles and maximum water flow.
FOR EASE OF USE, the top cover is built with a pressure gauge and release valve to release built-up air pressure and is specially equipped with a fastening locking system which prevents dead locking.
SYSTEMS FEATURE a 1 1/2 in. threaded connector and is rated at 115V/60Hz. Systems also include a high-efficiency pump and fittings shown in photo.
FILTER ONLY'S DO NOT INCLUDE PUMP, SYSTEM BASE or PUMP TO TANK CONNECTION..

Water Pressure test Gauge with fittings for connection to 1/4"OD tube.
Pressure test gauge for use with reverse osmosis systems, aquarium discuss marine systems and all water filter systems.
The Water Filter Men Pressure Gauge for Aquarium RO Reverse Osmosis System with 1/4.
Used a lot on the water pipe prior to your reverse osmosis system / aquarium ro / other.
Glycerin filled water pressure test gauge universal to test water pressure gauge in multiple systems,Accuracy ASME B40.Grade B, Range to 0-220....

PVC caps offer a quick, easy way to cap pipe ends, test pipes and clean-outs.
Compatible with cast iron, plastic, Copper, or schedule 40 steel piping.
May be used for non-pressure drain, waste, and vent (dwv) piping systems and sewer systems indoors and outdoors.
Conforms to CSA B602, certified and UPC approved, rated for underground use.
Flexible Connectors are leak-proof, rot-proof and sealed against infiltration and exfiltration,.