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Includes 12 White Silicone GROMMETS fit any brand Mason jar plastic caps (1/16'' groove). THE 1/16'' GROOVE IS TOO NARROW FOR GLASS LIDS. Grommet easily inserts into 9/16'' lid hole (1/2'' may be too tight, pushing the airlock into the lid may cause the lid to crack; 5/8'' may cause a loose fit for the grommet). Grommet center hole is 3/8'' and is the standard size for Fermentation Airlocks.
QRP GROMMETS are made of USDA Food Grade BPA-free Compliant White Silicone and produced by a reputable food container manufacturer.
And YES, straws will fit! :O)
BONUS: A FREE GIFT of an ''Our Daily Bread'' Christian daily devotional is included with each order. If you aren''t interested in receiving the booklet, simply send a message when placing your order and request that we withhold the gift. Thanks for your consideration!

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 2.3 inch
Height : 0.3 inch
Length : 3 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0 ounce (View shipping rates and policies)

ASIN : B00KTJXOBO

Product Description

Includes 12 White Silicone GROMMETS fit any brand Mason jar plastic caps (1/16'' groove). THE 1/16'' GROOVE IS TOO NARROW FOR GLASS LIDS. Grommet easily inserts into 9/16'' lid hole (1/2'' may be too tight, pushing the airlock into the lid may cause the lid to crack; 5/8'' may cause a loose fit for the grommet). Grommet center hole is 3/8'' and is the standard size for Fermentation Airlocks. I understand your health concerns. QRP products were developed to help me cure prostate cancer. ALL QRP products are USDA Food Grade BPA-free Compliant and are produced by a reputable food container manufacturer. ⓒ 2016 Quality Reliable Products, All Rights Reserved.