6? Heavy Duty CPAP Tubing * CPAP Tubing comes with standard 22 mm adapters * Dark Gray * Fits most CPAP and BiPAP machines * HCPCS Code: A7037 * Providers are responsible for determining appropriate billing codes for Medicare Program claims *</br></br>Product Description</br></br>Cpap Tubing - 8' Heavy Duty. - CPAP tubing features quality smooth interior walls with durable end cuffs. - Universal</br><br/>http://www.amazon.com/gp/product/B00BHERXNA