G System - Keg Coupler - Tap with Ergo Lever Handle

Product Images

G System - Ergo Lever Handle


"G" system gets its name from the English developer, Grundy. The valve face can be thought of as a circle with three sides cut off. It is used by breweries such as Grolsch, Boddingtion’s, Caffrey’s and Anchor Steam (50 liter kegs). Visit our beer system listing for an expanded listing of beers that use the "G" system valve.

The keg coupler connects to the keg valve, "tapping" the keg. Both the gas line from the CO2 tank/regulator and the beer hose to the beer faucet attach to the coupler.


  • Coupler sits on top, twist 1/4 turn to connect
  • Stainless steel probe
  • Short handle is ideal for the smaller diameter 1/6 kegs
  • Easy to engage: push down to tap/pull up to un—tap


Do all brands of beers use the same keg tapping equipment?


ProductsBoddingtons / Caffreys / Anchor Steam
Handle ColorBlack
Handle StyleErgonomic Lever
Gas Port3/8" O.D. Barb (To fit 5/16" I.D. Gas Hose)
Beer Port7/8"-14 Thread (U.S. Beer Industry Standard)
Integral PRVFor safety: pressure relief valve releases at 55-65 PSI
Customer Reviews

Average Rating:

Product Quality
Ease of Use
Customer Service
Grrr @ Breweries
By Stevey from Boston on Monday, November 19, 2007
17 out of 17 found this review helpful
The day when all breweries can agree on a single keg tap will be a wonderful day, and I will parade around the street in front of my restaurant and sing happy tunes.

Until then, you have to buy one of these if you want decent beer on tap. It's a good piece of machinery, btw. never had a problem with it.

Was this review helpful to you?

Replacement Parts
ItemPart #DescriptionPriceAvail.Qty 
1 B409 Thread Adapter $11.68 In Stock
2 703-121 Non-Return (Torpedo) Valve $3.65 In Stock
3 762-101-F001 Micro Matic F1 Ergo Handle $16.20 In Stock
4 112-480 Handle Hinge Pin $2.50 In Stock
5 733-040 Pressure Relief, Couplers $8.78 In Stock
6A 102-539 Gasket, Keg Couplers $3.92 In Stock
7A 703-101 Probe $20.59 Out of Stock
8 401-038 Check Valve $3.24 In Stock
9 526E 5/16" Plated Brass Tailpiece $1.22 In Stock
10 874 Hex Nut $1.01 In Stock
11 759 Neoprene Washer $0.54 In Stock
12A 102-566 O-Ring, "G" Keg Couplers $1.69 In Stock