Micro Matic G9502 Keg Coupler for Guinness, U System, Ergo Lever Handle
$79.19
Micro Matic Keg Couplers
Keg coupler finder
Find the right coupler for your beer
Type your beer brand to see which coupler system its keg uses — then shop the exact coupler.
Micro Matic KK-713-058 KeyKeg™ Stainless Steel Keg Coupler, Ergo Lever Handle
$94.91
Micro Matic 7485BB D System Value Brass Keg Coupler, US Sankey, Black Lever
$35.59$69.99Save 49%
Micro Matic FD-C-A FlexiDraft™ A Type Keg Coupler, Ergo Lever Handle
$79.84
Micro Matic FT110AB-MM Beer Line Double Flusher Cleaning Cup, D and S System Keg Couplers, With Ball Lifter
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Micro Matic 102-524 Keg Beer Dispense Heads Check Ball Retainer Keg Couplers
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Micro Matic 7485SS D System Keg Coupler, Brewery Grade, Grey Lever Handle US Sankey
$55.47
Micro Matic 703-121 Beer Keg Coupler Non Return Valve (Torpedo)
$9.50
Micro Matic 102-530 Check Valve, Keg Couplers
$7.92
Micro Matic 401-038 Beer Keg Coupler Check Valve
$9.28
Micro Matic G408 Keg Coupler U System, Ergo Black Lever Handle
$98.43
Micro Matic 7485BB-R American Sankey Keg Coupler, Budget Friendly, Red Lever Handle
$35.59
Micro Matic 7485BB-B US Sankey Keg Coupler D System, Value, Blue Lever Handle
$35.59
Micro Matic FT84-2A Keg Coupler Sankey Tap Bottom Seal
$7.97
Micro Matic CC412 Replacement Beer Keg Coupler Seal, Cleaning Can and Beverage Tank™
$22.39
Micro Matic FD-C-S FlexiDraft™ S Type Keg Coupler, Ergo Lever Handle
$79.84
Micro Matic 7486BB European Sankey Keg Coupler, S System, Value
$37.19
Micro Matic FT872 Keg Coupler Elbow, 90°
$24.37
Micro Matic 112-480 Keg Coupler Handle Hinge Pin
$8.99
Micro Matic 102-566 O-Ring, "G" Keg Couplers
$7.43
Micro Matic 1900671 Keg Coupler Cleaner Brush, Nylon, D and S Systems
$9.04
Micro Matic 7486BS S System Keg Coupler, Black Lever Handle
$54.19
Micro Matic 102-526 Keg Couplers O Ring, Body
$7.52
Micro Matic 102-527 Keg Coupler Check Ball
$7.43
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Keg coupler systems: how to find the right one
A keg coupler taps your keg and connects the gas and beer lines, but couplers are not universal — the coupler has to match the keg's valve. Six systems cover almost every keg sold in the U.S.: D (American Sankey), S (European Sankey), A (German slider), G (Grundy), M, and U (UEC / Guinness), plus one-way KeyKeg couplers. To pick the right one, match the system to the beer brand or check the keg's valve. This guide covers U.S.-distributed kegs — a brand's system can change by region or importer, so confirm with your distributor when in doubt.
D System (American Sankey)
The most common coupler in the U.S. The D system taps all the major domestic breweries — Anheuser-Busch (Budweiser, Michelob), Miller, Molson-Coors, Yuengling — and the large majority of US craft breweries. If you're tapping a US-made keg, it's almost always a D.
S System (European Sankey)
Many European imports use the S system, distinguished by a longer, narrower probe than the D. It taps brands such as Heineken, Beck's, Amstel Light, and Pilsner Urquell. It resembles the D but is not interchangeable.
A System (German Slider)
Called the German Slider because it slides onto the valve face. The A system taps many German and Belgian brands such as Paulaner, Spaten, Warsteiner, and Hoegaarden.
G System (Grundy)
Named after its English developer, Grundy. The G system taps English ales and a few specialty kegs — Bass, Boddington's, Caffrey's, and Anchor Steam (50-liter kegs). Don't confuse it with the German A slider; the valve faces differ.
U System (UEC) - Guinness & nitro stouts
Named for the English manufacturer UEC. The U system taps Guinness and Harp, and is what you need for UK/Irish nitro stouts (paired with nitrogen or a beer-gas blend for the cascading pour).
M System & KeyKeg
The M system shares the German-slider body but uses a unique probe; it taps brands such as Schneider, Aventinus, and Einbecker. KeyKeg couplers are different again — they tap the one-way, recyclable KeyKeg format used by many import and craft brewers. Match the coupler to the keg format, not just the brand.
Not sure which coupler you need?
If you can't identify the system from the keg, our team has spec'd draft systems for 20+ years — call 888-964-4239 or use live chat and we'll match the right Micro Matic coupler to your keg.
Keg coupler FAQs
How does a keg coupler work?
A keg coupler connects to the keg's valve and links your gas and beer lines. Pressurized gas (CO2 or nitrogen) flows in through the coupler to push beer up the beer line and out the faucet. Engaging the coupler's lever opens the keg's valve.
How do I know which keg coupler I need?
Match the coupler to the keg's valve system. As a rule of thumb: US domestic and most US craft use D (American Sankey); most European imports (Heineken, Beck's, Amstel, Pilsner Urquell) use S; German and Belgian brands (Paulaner, Spaten, Warsteiner, Hoegaarden) use A; English ales (Bass, Boddington's) use G (Grundy); and Guinness and UK/Irish nitro stouts use U. A brand's system can vary by region or importer, so confirm with your distributor when in doubt.
What's the difference between a D and S system coupler?
Both are Sankey-style and look similar, but the S system has a longer, narrower probe, so they are not interchangeable. D (American Sankey) taps US beers; S (European Sankey) taps most European imports like Heineken and Beck's.
Do I need a special coupler for Guinness or nitro stouts?
Yes — Guinness and most UK/Irish nitro stouts use the U system coupler, paired with nitrogen or a beer-gas (CO2/N2) blend to create the cascading nitro pour.
Can I use an adapter instead of the correct coupler?
Adapters exist for some conversions, but using the correct coupler for the keg's system is the most reliable option and avoids leaks or poor pours. When in doubt, match the coupler to the keg.
Are these genuine Micro Matic couplers?
Yes. Every coupler here is genuine Micro Matic, listed by manufacturer part number, with replacement parts (seals, probes, handles) available.