Reusable neb kit that can be used for up to 3 months without replacement. * The timeframe does depend on the frequency of usage. * General rule of thumb is if you're noticing that the medication isn't nebulizing as quickly or as much it's time to replace the neb kit. * Reusable Neb Kit with Nebulizer Cup Mouthpiece T and 7' Tubing * Anti-spill T design. * Leak-proof and secure seal with simple 1/4 turn assembly design. * Very low residual volume (0.7cc). * High medication bowl capacity (10cc). * Graduated volume (cc) markings on bowl. * Nebulizes in upright positions or at angles up to 45ø. * Dishwasher safe.