Regulators are the last line of defense for preventing over pressurizing your marker, so you want to make sure you have a good quality regulator on your tank. There are many versions of regulators from a variety of companies. The most common types of regulators are standard / basic regulators or adjustable / pro regulators. A standard regulator is going to commonly be set to an output pressure of about 750-800psi which cannot be adjusted. These basic tank regulators are usually what comes on most value or basic tanks, the positioning of the regulator can also not be adjusted. An adjustable or Pro regulator has the ability to adjust the output pressure, so you can match it to your markers needs, you can also usually swivel the regulator to adjust how the fill nipple sits, ensuring it will not be poking you in the wrist or be in your way at any point.
Additionally there are a wide variety of accessories available for tank regulators such as thread protectors, fill nipple protectors, regulator cases, and much more, which can also be found right here! As new paintball tank regulators are developed they will also be added here with the others that are currently available.