4 Pack Hydraulic Quick Coupler Dust Cap And Plug Set For 1/4 In ISO Fittings Blue And Yellow Caps Includes 1/4 And 3/8 In ISO Compatibility Tearproof OEM Upgrade 50 Percent Tougher Lifetime Warranty

4-Pack hydraulic quick coupler dust cap set for ISO fittings
✔️ Blue caps with yellow plugs; fits 1/4 in and 3/8 in ISO fittings; tear-proof

This 4-pack dust cap and plug set is designed to protect hydraulic quick coupler ISO fittings from dirt and damage. It’s commonly used on hydraulic lines, machinery maintenance, and field service to prevent contamination and leakage. Compatible with 1/4 in (6.35 mm) and 3/8 in (9.525 mm) ISO fittings.

✅ Tear-resistant, high-tensile rubber construction for long life
✅ OEM upgrade with a tear-proof design that’s 50% tougher
✅ Blue caps and yellow plugs clearly differentiate status and use
✅ Fits 1/4 in and 3/8 in ISO fittings; compatible with common hydraulic systems
✅ 4-pack set with lifetime warranty

💡 What is a dust cap and plug set for hydraulic quick couplers used for in industrial systems?

It's handy for protecting ISO fittings and keeping hydraulic lines clean.

- Keeps dirt, moisture, and debris out of 1/4 in and 3/8 in ISO fittings
- Reduces wear and corrosion, extending the life of quick-connect components
- Simple install and removal for fast maintenance and minimal downtime