When you are standing in the hoses tubing fittings aisle with a hose in one hand and a bag of connectors in the other, the first question isn't "which is cheaper?" It's "which one actually goes on this hose?" These two kits take very different paths: one is a hydraulic hose end set for 3/8" lines, and the other is a 1/4" industrial-grade air quick connect kit.
Quick verdict
If you are assembling or repairing hydraulic hoses for fluid power systems and industrial applications, buy the hydraulic crimp fitting kit. If you are connecting air tools, couplers, and air compressors in automotive shops or garages, buy the air quick connect kit.
Comparison table
| Attribute | 12-pc Hydraulic Crimp Fittings | 14-pc Air Quick Connect Kit |
|---|---|---|
| Listed price | USD 43.69 | USD 15.99 |
| Price position | ||
| Included pieces | 12 | 14 |
| Connection specs | 3/8" hose x 3/8" JIC 37° female swivel | 1/4" NPT M/D type quick connect |
| Best used for | Hydraulic fluid power systems | Air compressor and air tool connections |
| Finish or material cue | Silver finish | Brass construction |
Where the hydraulic kit wins
The hydraulic fittings are the focused choice for fluid power work. The straight-shaped swivel ends are designed for hydraulic hoses that carry petroleum-based fluids, gasoline, fuel, and lubricating oils. If your project involves crimping new ends onto hydraulic lines, this set provides the matching ends in one kit. The swivel design and straight shape are there to support stable connections in hydraulic applications.
Where the air kit wins
The air quick connect kit is the practical team player for a busy shop. It lists at $15.99 and costs $27.70 less than the hydraulic kit, so if your daily work is mostly air tools rather than hydraulic lines, you get a versatile connector set for a lower listed price. The quick connect design fits common air compressor, air tool, nailer, blow gun, and pressure washer connections.
Product notes
12pcs 3/8" Hose x 3/8" JIC 37° Female Hydraulic Hose End Swivel Crimp Fittings
This kit is built around the JIC 37° female swivel, a common hydraulic connection style. The 3/8" by 3/8" sizing means the fitting is matched to 3/8" I.D. hoses with a 3/8" JIC female end. The straight shape helps with connection stability, and a protection cover is included with each fitting. If you work with fluid power systems or need to replace ends on hydraulic hoses carrying industrial fluids like petroleum-based oils, gasoline, or lubricating oils, this is the set that matches that job. The kit is finished in silver and includes 12 pieces. A practical limitation is that these are hydraulic crimp fittings, not quick-disconnect air couplers, so air tool quick-connect work will need a different fitting style.
Air Hose Fittings 1/4" NPT Industrial Grade M/D Type - Quick Connect Kit 14pcs
This air kit is the straightforward option for 1/4" NPT air systems. It comes with brass quick connect couplers and plugs, and the M/D type design matches a wide range of common air tools and compressors. The maximum pressure rating is listed at 300 psi, and the kit includes a one-year manufacturer warranty. If you work in an automotive shop, garage, or anywhere you need to connect an air hose to a nailer, blow gun, pressure washer, or air compressor, this kit gives you the parts for those connections. The brass construction gives it a durable profile for repeated coupling. The limitation is the reverse of the hydraulic kit: it is designed for air lines, so hydraulic hose assembly with JIC ends is outside its scope.
Final choice by use case
- Choose the hydraulic hose end swivel crimp fittings when you are repairing or assembling hydraulic hoses and need a crimp-on end designed for that job.
- Choose the air quick connect kit when you are hooking up air tools, air hoses, air compressors, or air-powered accessories.
