+ Safe... clean...natural air from any scuba regulator
+ Apollo's patented moisture system can now be added to almost any brand regulator
+ The Bio-Filter is easy to install, use, and maintain
+ It is also great as an addition to a rental regulator when traveling
+ The moisture system assures clean moisturized air

Material: Seeflex Nylon II Neoprene

3 Prong 5/16" SS Drift Anchor

UK SL4 replacement bulb.