RV Propane Pressure Test Kit Parts: 0–35 in WC Gauges, Hoses and Adapters

RV propane service pressure is checked with specialized low-pressure equipment, not an ordinary cylinder gauge. A technician may use a 0–35 inch-water-column gauge, a suitable test hose and the correct appliance or line-pressure adapter. This parts guide compares complete Marshall Excelsior and Camco kits with their separate replacement gauges, hoses and adapters so you can identify the right equipment by exact part number.

Know the components of a low-pressure test kit

The functional diagram below identifies components—not a test procedure. Actual test locations and allowable pressure values depend on the RV regulator, appliance manufacturer's service information and applicable gas regulations.

Pressure-measuring equipment

RV's regulated LP-gas systemDownstream of the correct pressure regulator
Manufacturer-approved test pointPort location varies by equipment
Correct test fitting and hoseExamples: ME50-H hose; ME1328 or ME1331 for specified line sizes
Low-pressure gaugeExamples: 0–35 in WC ME50P-2 kit, ME60-2 gauge or Camco 10389 kit

Other service items—not the same tool

ME-KIT-1Complete RV pressure test kit with case, gauge and hose
ME60-2 replacement gaugeAdjustable gauge component; a gauge alone is not the complete case-and-hose kit
ME-LD2 leak-check liquidSeparate bubble-forming product used by trained service personnel to assess gas connections
Cylinder-side pressure gaugeA different pressure range and purpose; it cannot replace the in-WC test instrument
Original conceptual illustration. Test points, adapter sizes, hose connections and pressure limits are not universal. The diagram is not a sequence of actions for connecting to or pressurizing an LP-gas system.
Units matter: Inches of water column (in WC) is used for low-pressure readings. A gauge designed for cylinder-side pressure in PSI is not a substitute, even if both products are called propane gauges.

Marshall Excelsior ME50P-2 versus adjustable gauge models

Marshall Excelsior specifies the ME50P-2 as a complete kit with a non-adjustable gauge. The ME60P-2 complete kit family uses an adjustable gauge. The separately catalogued ME60-2 is the adjustable gauge component with a 1/4-inch male NPT connection, not the full ME60P-2 kit.

Camco 10389 is another 0–35 in WC test kit with an analog gauge, hose, brass test fitting and case. For the Marshall service kit, ME50-H is the factory-listed replacement hose and bell. The ME1328 and ME1331 manometer adapters are listed for 3/8-inch and 1/2-inch outside-diameter connections respectively; that size is not a universal substitute for identifying the actual port.

All gas-pressure diagnosis, test-port access and any changes to a regulator or appliance gas connection should be carried out by qualified RV/LP-gas service personnel.

Exact product numbers and their purposes

Part number What it is View item
ME-KIT-1 Complete low-pressure RV test kit Compare exact item
ME50P-2 Non-adjustable gauge test kit Compare exact item
10389 Camco low-pressure test kit Compare exact item
ME60-2 Adjustable replacement gauge Compare exact item
ME50-H Replacement hose and bell Compare exact item
ME1328 3/8-inch OD manometer adapter Compare exact item
ME1331 1/2-inch OD manometer adapter Compare exact item
ME-LD2 Leak-check liquid, separate purpose Compare exact item

Compare actual gauges, hoses and test-kit photographs

These product cards link directly to matching NewRVParts listings. Items ship from supplier warehouses and are not available for in-person viewing or pickup. Check current availability and the exact manufacturer number before ordering service equipment.

Factory pressure-test equipment references

Marshall Excelsior publishes a ME50/ME60 test-kit comparison and a separate ME60-2 gauge specification. Its manometer adapter family includes ME1328 and ME1331. The actual service procedure and acceptable readings are determined by the equipment's approved service literature.

Browse the RV safety equipment reference directory

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