So the JTube slides into or screws onto this jar top, letting extracted solvent + oil flow directly into the jar.
Title: Finally, a perfect replacement for those rusty metal lids!
Rating: ⭐⭐⭐⭐⭐
I’ve been looking for a way to upcycle my old Mason jars for pantry storage, and the JTUBE Jar Top is exactly what I needed. The plastic is thick, durable, and feels high-quality—not cheap or flimsy like generic brands.
The fit is perfect on my standard-mouth jars; it screws on smoothly without cross-threading. I use these for my spice rubs and powdered sugar, and the shaker holes are the ideal size. It gives a nice, even sprinkle without clumping. Plus, they are dishwasher safe (top rack), which is a huge bonus. If you are tired of dealing with rusty two-piece metal lids, swap them out for these. Highly recommended! jtube jar top
The term "JTube" refers to a specific style of closed-loop extraction system (often associated with the brand Best Value Vacs or similar entry-to-mid-level BHO extractors). However, the JTube jar top has become a genericized term for a specialized mason jar lid adapter.
Unlike a standard canning lid, a JTube jar top is a machined piece of metal (usually stainless steel or aluminum) that replaces the standard lid insert. Its defining features include: So the JTube slides into or screws onto
In short, it turns a simple Mason jar into a collection vessel for hydrocarbon extraction.
Imagine a standard wide-mouth Mason jar lid ring (silver band), but instead of a flat insert, there’s a ¼” to ½” thick metal disc with: Title: Finally, a perfect replacement for those rusty
The JTube’s bottom end screws directly into the center port using a flare fitting or NPT-to-compression adapter.