RRP: £1800

Free UK delivery on all orders over £50
  • Based on Apeks designs for the US military the MTX-R can withstand the harshest environments that any scuba diver will experience.
  • Large protective elastomer bumpers on the side and on the top to protect the demand valve from impacts and scratches in the most vulnerable place.
  • To prevent ice build-up within the 1st stage the MTX-R features an over moulded end cap.


The Apeks MTX-R Sidemount Regulator Kit delivers the ultimate all-in-one package to meet the most demanding tec-divers needs. Including all the necessary equipment and hardware for sidemount diving, the MTX-R Sidemount kit lets you explore the most challenging diving environments with ease.

The MTX-R regulator has been designed around the military spec MTX regulator and has been tested to meet the US Navy Experimental Dive Unit requirements. It performs flawlessly in temperatures as low as 0.5*C at over 60m down. Very few regulators get near the performances of the Apeks MTX-R.

The kit includes two MTX-R regulator sets, the first comes in a short 65cm hose configuration with a right angled swivel hose attachment. The second regulator has a 210cm hose and straight swivel hose. Both of these offer improved ergonomics, to help when mounting your rig.

The MTX-R sidemount kit includes:

2 ea. DPT DIN 1st stages with 5 port swivel turrets.
2 ea. MTX-R second stages.
210cm double swivel hose.
61cm double swivel hose
2 ea. 25cm length MP inflation hoses (one for buoyancy system, one for drysuit)
2 ea. TEK pressure gauges with 18cm hoses
1 ea. 90° elbow fitting
1 ea. bungee necklace
1 ea. bungee clip
1 ea. stainless steel bolt snap
2 sets of short exhaust ports
Regulator bag
Setup illustration, CD manual and quick start guide


First stages

Over balanced for superior performance.
Compact environmentally sealed diaphragm system completely eliminating the maintenance issues associated with silicone, oil or grease filling.
Recommended for frequent use in cold or contaminated water.
Environmental over-moulded endcap & diaphragm that helps prevent ice build-up that can cause first stage free flow in extreme circumstances. Also protects the first stage from impact damage.
Double swivel hose for greater freedom of movement and comfort.
5 x 3/8” UNF medium pressure ports & 2 x 7/16” UNF high pressure ports.
The 5th 3/8” UNF medium pressure port includes a protective bumper when not in use.
Forged first stage body with heat exchanging ribs for maximum thermal performance.
Angled HP ports for optimal hose routing and fitting transmitters.
Forged rotating turret with medium pressure ports in a parallel direction for improved hose orientation.
Tested for Octopus use – EN250A to 60 meters cold water.
Nitrox/Oxygen compatible
Second stages

Simple to use with no dive controls, pre-settable cracking effort or venturi control by an Apeks approved qualified technician.
High performance pneumatically balanced lever operated poppet valve.
Large diver friendly self-flushing controllable purge button.
Front cover with over-moulded elastomer bumpers incorporates a formed chrome plated brass plate improving durability of the demand valve.
Large protective elastomer bumpers on the side and on the top to protect the demand valve from impacts and scratches in the most vulnerable places.
Reversible second stage for either a left or right-hand gas supply.
Hard wearing, satin chrome.
All gas contact moulded parts are produced using an active protection additive that kills MRSA, protects against E-Coli, bacteria and fungi, and is also very effective against viruses, mold, yeast and algae.
Large heat exchanger fitted to help reduce second stage freezing.
Nitrox/Oxygen compatible


Connections DIN only
Type of first stage Over-balanced diaphragm design, environmentally sealed
Body Type Forged first stage body with heat exchanging ribs for maximum thermal performance.
Number of HP ports 2 (7/16″ UNF) per first stage
Number of MP ports 5 (3/8″ UNF) per first stage
Environmental Dry Kit Standard
First stage exterior Satin chrome
Orientation Convertible LH or RH
Coldwater Use Yes
Type of second stage Pneumatically balanced
Opening Effort Control Knob No
Integrated Venturi Lever No
Mouthpiece Comfo-bite™
Exhaust tee Diver Changeable – comes with 2 sets
Heat Exchanger for freezing resistance Yes
Hose type Rubber breathing hoses and braided flexi inflator hoses
Nitrox compatible Yes to 40% O2 when new, out of the box / Can be O2 cleaned to 100%.
Gauge face Tempered glass
Over-pressure relief on gauge back Yes



Scuba Dive Store always offer an extended returns policy of 30 days – so you can rest assured that if the suit, piece of diving equipment or gift doesn’t suit then just send it back and we will either exchange it or offer a full refund less any postage costs. Please return the item to the following address:

Scuba Dive Store
Valley Rd

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