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Aluminum manifold gauge set with two valves, three long hoses and dual dry gauges

Dayton

Dayton 4PDF7 Manifold Gauge Set 2 Valve 3 Hoses measurement tool

SKU CH-Z6QK-58RW1

Two-valve manifold gauge set with three 72-inch SAE-approved hoses, aluminum body, 0 to 500 psi high-side and 30 in Hg to 350 psi low-side dry gauges, sight glass.

  • Product typeAssortments & Kits
  • Measures low-side vacuum to 30 in Hg for accurate evacuation checks
  • Reads high-side pressure up to 500 psi to confirm system performance
  • Three 72 in SAE-approved hoses provide flexible reach around the engine bay
  • Aluminum manifold body with piston-style valves resists corrosion during repeated use
  • Designed for R-134a automotive systems with integrated sight glass for visual refrigerant inspection

Automotive A/C Manifold Gauge Set

The Dayton 4PDF7 is a mechanical manifold gauge set built for automotive air-conditioning service. It uses R-134A refrigerant and includes two piston-style valves with three SAE-approved hoses. The kit suits technicians who need a compact, aluminium-bodied tool for pressure testing and charging tasks.

Pressure Range And Hose Reach

High and low-side dry gauges measure 30 in Hg to 350 psi and 0 to 500 psi respectively. The 72 in hoses give ample reach around engine bays while the blind ports store hose ends when not in use. Very high-pressure systems beyond 500 psi fall outside the calibrated range.

R-134A Service Limits

The set is dedicated to R-134A automotive applications and carries California Proposition 65 warnings for cancer and reproductive-harm chemicals. It does not support other refrigerants or industrial pressure-testing standards. A built-in hook and sight glass aid handling and visual checks during operation.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $179.99
Pricier than about 74% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameDAYTON
Product typeAssortments & Kits

Questions about this item

Will the 72 in hoses reach the service ports on my older R-134a vehicle without stretching?

The three SAE-approved hoses are each 72 in long, giving ample reach for most engine bays while the aluminium manifold block stays clear of hot components.

How do I verify the gauges read correctly after I hook everything up?

With the valves closed, the low-side gauge should sit at 30 in Hg vacuum and the high-side gauge at zero; opening the valves should show live system pressure up to 500 psi on the high side and 350 psi on the low side.

Does the set include the R-134a couplers or must I buy them separately?

The kit ships with three hoses, the two-valve aluminium manifold with blind ports, a hook and a sight glass; quick-connect couplers for R-134a service ports are not included and must be purchased separately.

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