Wise builders go with 3/8 fittings on their water/meth pumps. These fit standard 1/4" tubing but feature leakproof compression fittings made from 304 stainless steel. Old school push-to-connect drips like mad and hardlines are an expensive and impractical burden. The same security is had with this solution while convenience and value are much greater. These bits directly replace older fittings. They work with the same tubing, solenoids, and other plumbing elements.
Photo demonstrates difference between 3/8 and 1/8 NPT fittings. Both accept the same standard 1/4" tubing.
Tubing is secured via compression fit which guarantees zero leaking.
