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Aquarium Supplies
Home » Saltwater Aquarium Supplies  » CO2 Products  » Accessories  »  MK I Perma-Seal CO2 Outlet Port - 1 Piece
MK I Perma-Seal CO2 Outlet Port - 1 Piece

MK I Perma-Seal CO2 Outlet Port - 1 Piece

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MK I Perma-Seal CO2 Outlet Port - 1 Piece Information

Perma-Seal Brass

Perma-Seal provides a permanent seal for the connection between your CO2 regulator and cylinder. No more leaks. No more plastic washers.

**Note: Sorry, these will NOT work for the Milwaukee regulator.

**Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Price Guarantee, please be certain the product you want to price match is the same make and model.

MK I Perma-Seal CO2 Outlet Port - 1 Piece Reviews

Average Rating
(2 reviews)
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Long term use

Reviewers Rating Average

Posted: 4/16/2014 from ROCKVILLE, MD UNITED STATES
3.0 5
Experience Level: Expert

Comments: My original MK1 which was between the tank and regulator was found to be coming apart in the center This is why I bought another. Do not over tighten. It was difficult getting the thing out due to the Allen wrench opening flimsy connection with the remaining seal

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MK1 Perma seal

Reviewers Rating Excellent!

Posted: 3/1/2012 from STATE COLLEGE, PA UNITED STATE
5.0 5
Experience Level: Intermediate

Comments: I was tired of figuring out Co2 leaks from the system - Airgas CO2 dual regulator and SUMO post-regulator kit, I had opened up the whole thing re did the entire assembly. Not till i exchanged my nylon seals with this perma seal has the CO2 losses disappeared! Now the regulator easily holds pressure and my aquarium is merrily growing plants with 2bps CO2 injection!!! Couldn't me happier You need a small Allen wrench to tighten this thing, BUT DONT TIGHTEN too much or else the seal may get damaged.

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