CO2 Bottle Knobs

Choose your drive size. Choose your color.




CO2 Bottle Knobs
Drive SizeBlackRedBlueSilverPolished
.290 SquareC72-250C72-251C72-252C72-253C72-254
.320 SquareC72-260C72-261C72-262C72-263C72-264



Image Part Number Description Price Unit
C72-250 C72-250
BLACK BOTTLE KNOB, 0.290 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
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$33.99 Each
C72-251 C72-251
RED BOTTLE KNOB, 0.290 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
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$33.99 Each
C72-252 C72-252
BLUE BOTTLE KNOB, 0.290 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
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$33.99 Each
C72-253 C72-253
SILVER BOTTLE KNOB, 0.290 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
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$33.99 Each
C72-254 C72-254
POLISHED BOTTLE KNOB, 0.290 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each
C72-260 C72-260
BLACK BOTTLE KNOB, 0.320 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each
C72-261 C72-261
RED BOTTLE KNOB, 0.320 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each
C72-262 C72-262
BLUE BOTTLE KNOB, 0.320 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each
C72-263 C72-263
SILVER BOTTLE KNOB, 0.320 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each
C72-264 C72-264
POLISHED BOTTLE KNOB, 0.320 in. SQUARE DRIVE
Confirm size needed by measuring square drive on your bottle.

Made in the USA
See Product Details »
$33.99 Each


A Better Square-Drive Knob

Get a solid grip on that CO2 bottle with a Pro-werks’ Bottle Knob. This lightweight, all-American solution features deep notches, and they match the rest of the Pro-werks’ line up of signature Easy Turn Fill Caps and knobs

Starting with American melt, aircraft-grade 6061-T6 aluminum; we precision machine each knob on one of our multi tasking MAZAK CNC machining centers, then finish them in your choice of anodized black, red, blue, or silver colors; and our popular micro-polished aluminum finish.

Available in two different square drive sizes to accommodate valves found on most CO2 bottles. For proper selection, we recommend that remove your original knob and measure the "square drive" of the bottle valve to confirm your requirement before ordering.

Crafted with pride in Mears, Michigan, USA

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