Deluxe Fitting and Hose Kit

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Deluxe fitting and hose kit for our gas booster includes a quick connect system that provides the ability to transfill or boost from a variety of sources.

Deluxe Fitting and Hose Kit

Analog Guage
Analog Guage Digital Deluxe Fitting and Hose Kit Digital Guage Quick Release Gas Fittings Booster Fittings
  • { 96 in | 2.4 m } inlet hose is long enough to reach supply cylinders and has a check valve to prevent back flow
  • { 60 in | 1.5 cm } long outlet hose includes a line valve and a DIN Scuba adapter with bleed valve
  • Quick connects make it easy to pack the booster for transport and easy to reconfigure as needed
  • Also includes CGA-580 helium/argon and a CGA-540 oxygen adapters
  • Choose Analog (both psi/bar markings) OR Digital (configurable for psi/bar) gauge

The quick connects make it easy to pack the booster for transport and easy to reconfigure as needed. The { 96 in | 2.4 m } inlet hose is long enough to reach even the tallest supply cylinders and has a check valve to prevent back flow. The inlet hose also includes quick connects and three common US adapters are also part of the package: a CGA-580 helium/argon, a CGA-540 oxygen, and a DIN Scuba adapter with bleed valve. The { 60 in | 1.5 cm } long outlet hose includes a line valve and a DIN Scuba adapter with bleed valve. The kit also contains a standard BC quick-connect fitting for the drive gas, and quick connect fittings for the inlet and outlet hoses. Add the optional DGX Tek storage bag to protect the entire kit and gauges when traveling and not in use.

The Analog kit includes an analog pressure gauge with both psi/bar markings. The Digital kit includes the same fitting and hose system as the analog kit, but substitutes a digital electronic gauge which is user configurable for psi or bar display. The accuracy and precision of the digital gauge makes the system suitable not only for transfilling and boosting, but also for blending.

A nice feature of our Deluxe fitting and hose kit is that the quick connects are oriented such that the inlet and outlet hoses can be plugged directly together without the booster. This means you can use the hoses for transfilling and blending without needing the booster at hand as well.

More Information
Brand DGX
Weight (lbs) 7.7500
Customer Reviews
Most Helpful Customer Reviews
  1. Very good product, and exceptional



    Very good product, and exceptional service from Dive Gear Express as always.
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Tek Tip Warning Image WARNING

We've seen some unsafe low cost do-it-yourself fitting and hose kits cobbled together from sources like hydraulic supply houses and even Home Depot. The fittings are usually low pressure type and only suitable for "shop air" service at 200 psi. In particular, very few quick connect fittings are rated for high pressure. PTFE S/S braided hose is popular because it's cheap and very flexible, but it's typically only 2400 psi service pressure rated and not particularly durable. If going DIY, please be safe and keep in mind our kits use Swagelok® fittings and breathing air hoses carefully matched to the higher pressure specifications and quality of the Haskel Mini Sport Booster.

Uncoupling DIN Fittings From SCUBA Valves

There is more to disconnecting a DIN fitting from a valve than you might imagine. Do it incorrectly and you will probably lose an o-ring and perhaps even need to have your regulator serviced. The problem is most pronounced in using DIN fittings on fill whips, and more rarely on first stage regulators. The o-ring popping out of the nose of the DIN fitting is an issue on scuba regulators and fill whip hoses and it is caused by failing to completely bleed residual pressure before uncoupling the fitting.

On fill whips, you can be certain all the pressure is released by opening the bleed and waiting a few extra seconds before starting to unscrew the fitting. You need to wait a moment after the hiss stops, because the bleed hole is tiny and gas will continue to escape even after the hissing stops. Compact ring-style bleeds found on fill whips that twist either direction to bleed are popular because you can't lose the bleed screw, but with this design you must make sure the ring is centered on the bleed opening because if you keep twisting you will close it again with out fully bleeding the hose.

Even when divers are using improper technique to unscrew DIN fittings on first stages, they rarely see the problem because usually they are unscrewing the fitting from a nearly empty cylinder with relatively little pressure remaining. But if the cylinder is nearly full and the diver encounters a circumstance where the first stage DIN fitting must be unscrewed then proper technique can very important. Briefly purging the second stage just once is not enough, residual pressure trapped in the high-pressure hose of the SPG will take several seconds to move all the way back through the regulator first stage to the second stage. You must wait a moment between each time you push the purge and you must do it three times in a row to fully release all the pressure from the hoses. Another equally effective two-handed technique is to continue to hold the second stage purge down in one hand while you begin to unscrew the DIN fitting using the other hand.

DIN fitting designs on regulators use a two or three part assembly in which the threaded component with a handwheel collar slides onto a hollow center post and is retained by a 'nose cap' that contains the sealing DIN o-ring on the front and a smaller o-ring on the back. Improperly unscrewing the collared threads by rocking the entire assembly back and forth, or just using brute force to 'break' the seal can eventually can loosen the center post and/or nose cap causing a leak or seal failure the next time you try to use the fitting. We've seen the loosened nose cap act as a 'locking' mechanism, resulting in the regulator becoming frozen in to the DIN outlet and impossible to remove. Sometimes you can 'save-a-dive' by using a hex wrench to hand tighten the DIN assembly but a loose assembly is nearly impossible to permanently correct in the field and usually requires bench service to be able to fully tighten and lock the assembly back in place.

Proper technique to uncouple a DIN fitting requires you be careful to only turn the collar in the DIN fitting, don't grab and turn the entire assembly. If you can't easily turn just the collar to unscrew, i.e. you have to use force on the the entire assembly to 'break' the seal, then the line is not fully depressurized and you need to repeat the bleed.

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