TESTOManifold Hose Adapters, Couplers & Unions
TESTO Step Adapter: 1 1/4 in Lg, 180° Angle, Input 1/4 in Female SAE Right-Hand
The TESTO Step Adapter (MPN 0554 3114) is a brass manifold hose adapter with a 1 1/4 inch length and 180° angle. It features a 1/4 inch Female SAE Right-Hand input and is A2L compatible.
SKU 3G-OTH-71993
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TESTO Products
3G Electric (S) Pte. Ltd. — Singapore
Product Description
The TESTO Step Adapter (MPN 0554 3114) is a brass manifold hose adapter with a 1 1/4 inch length and 180° angle. It features a 1/4 inch Female SAE Right-Hand input and is A2L compatible.
Used in
Common applications for TESTOHVAC system evacuation — Testo 552i wireless vacuum gauge for measuring micron levels during refrigerant line evacuation.
Refrigerant charging — Testo 550s digital manifold gauge set for R-744 systems in commercial refrigeration.
Indoor air quality monitoring — Testo 420/440 hood kit for measuring air velocity and volume in ventilation ducts.
Temperature logging in cold storage — Testo 0577 0400 data logger for tracking temperature in refrigerated warehouses.
Combustion analysis — Testo CO probe head (0632 1270) for measuring carbon monoxide in boiler flue gases.
Refrigerant scale operation — Testo 0564 2560 01 charging scale for precise weight-based charging in field service.
TESTO Products
3G Electric supplies TESTO manifold hose adapters, couplers & unions. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.






