Some Regulator Manufactures have Low Pressure Ports that won't accept all Low Pressure Hoses. The Machine Port will not let other manufactures Low Pressure Hoses to properly seat and create a seal. XS Scuba's Low Pressure Port Extender can eliminate this problem by extending the Low Pressure Ports Threads further away from the First Stage Body. Low Pressure Port Extender is designed for Standard 3/8" Low Pressure Hoses. Adapter has 3/8-24 Female x 3/8-24 Male Threads, so it will accept Standard Regulator or Power Inflator Hoses. Adapter is Low Profile with a Height of 0.63" (16 mm), is manufactured from Durable Corrosion Resistant Black Finish Chrome Plated Brass and comes equipped with Viton O-ring, is Factory Cleaned, so it's Nitrox Ready. Adapter is designed for Low Pressure Only below 200 psi (13.8 bars) and makes a Great Save-a-Dive Kit item.