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Connecting Adapter

Connecting Adapter


Regular price $18.99 USD
Regular price Sale price $18.99 USD
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Processing: 1-3 business days. Shipping: 3-7 business days.

  • 19/22 to 14/20; 24/40 to 14/20; 24/40 to 19/22
  • Enlarge Adapter
  • 19/22 Top Outer Joint to 14/20 Bottom Inner Joint;24/40 Top Outer Joint to 14/20 Bottom Inner Joint;24/40 Top Outer Joint to 19/22 Bottom Inner Joint
  • Borosilicate Glass, Heavy Duty Design, Reusable & High quality
  • StonyLab ensures high quality and premium customer service

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100% Satisfaction! Please feel free to contact us anytime. All your questions will be answered within timely manner.

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Yes, StonyLab offers delivery service to customers worldwide! Free standard shipping on labware orders in the US.

2-Year Comprehensive Warranty

Rest easy knowing that all web registered members receive a 2-Year Comprehensive Warranty on their purchases.

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Customer Reviews

Based on 11 reviews
Michael H.
perfect for using 18mm bowls in any bong with a 14mm joint

works great will be ordering more soon


Great deal for the money

Very easily chipped/broken

This is the most fragile piece of borosilicate glass I��ve ever seen. I somehow chipped the 14/20 male end with my fingernail! I am not going to use it under any significant pressure or vacuum, otherwise I would be returning it.

Gary Smith

Great quality, just what i needed!

Darren hewer
Really good quality i use it for smoking thriough

Ive had a few of these now and they always last a few months using a blowtorch lighter to use it for my purpose which is basicaly a smoking pipe with gauze in the small end so i imagind they would last forever used in the proper way