XL4 2nd Stage
£125.00 RRP £156.00 Out Of StockPlease note: This item cannot be shipped outside the European Union - learn more
The Apeks XL4 2nd Stage is a compact little second stage made for advanced divers who want a light weight mouthpiece that can handle colder waters. Based on the Flight 2nd stage the XL4 is small but powerful.
Who's the XL4 2nd Stage For?
Originally the XL4 was designed for technical divers who want a light, compact 2nd stage that won't create jaw fatigue or be bulky on a stage cylinder. Any Diver can appreciate the small XL4 for it's broad capabilities in being a cold water but lightweight 2nd stage.
Fit to any length Standard Regulator Hose the XL4 is happy as a primary or alternate 2nd stage in either warm or cold water.
The 2nd stage requires both a 1st Stage and a Regulator Hose to work properly and it's best if they are Assembled and Tested together because they may need adjusting so they balance and work correctly.
Apeks XL4 2nd Stage - Features
?This feature allows the diver to adjust the inhalation setting from the set level and increase the effort required to open the 2nd stage valve to deliver air. Close.
?The venturi control affects how air flows in the 2nd stage. In it's positive position the flow of gas creates a vacuum against the diapragm, helping to open the valve. In it's negative position it will divert gas back against the diaphragm helping to close the valve. It is basically used to help prevent free flowing. Close.
|Cold Water Rated|
?Cold water has adverse effects on regulators and can cause some to freeze so each regulator combination must be tested during manufacturing for their performance in different water temperatures.
Cold water is defined by EN250 as below 10°C. If a regulator combination cannot meet the performance standards below 10°C then they are only suitable for warm waters.
EN250 / (EN250A >10°C)
To pass the regulator must provide at least 62.5 L/min of air at 50M depth above 10°C. Close.
|Cold & Warm Water|
?Environmentally sealed 1st stages offer greater protection against freezing when diving in cold water (below 10 degrees C)
Scubapro have a new method of cold water proofing their first stages called the eXtended Thermal Insulating System or XTIS which still allows water into the first stage but the internal parts that come into contact with the water are coated to prevent ice from forming. Close.
?Unbalanced regulators are affected by the pressure in the cylinder, becoming slighty harder to breathe from when the pressure starts to drop.
Balanced regulators are not affected by the cylinder pressure or depth.
Over-balanced regulators achieve unprecedented performance by increasing your air supply the deeper you go providing the best breathe for deep divers. Close.
|High Pressure Ports|
?High pressure ports supply the pressure gauge and wireless transmitters for dive computers Close.
|Low Pressure Ports|
?Low pressure ports supply the 2nd stages and inflator hoses Close.
?All regulators need to be serviced to keep them in working order as the parts inside them age and wear over time and with use. Most regulators need to be serviced once a year or after 100 dives with normal recreational use to replace parts and re-balance.
Some regulators use more modern materials or mechanisms that allow them to extend the servicing interval that can save you some money in the long run. Close.
|1 Year - 100 Dives|
|Weight in Grams (approx)|
?The weight includes the first stage (DIN fitting), hose and second stage. Close.
We offer free tracked UK standard delivery on orders over £50.
Standard UK delivery is £3.95 for orders under £50. You will receive your order 2 - 4 days from the date of despatch. Order by 3pm on a working weekday and we will aim to despatch the same day.
Next Working Day for the UK is £6.95.
We hope you will be completely satisfied with any product purchased from Simply Scuba.
However, you can return it for any reason within 28 days from the date of despatch for a full refund (less postage costs).
Royal Mail tracked return option within the UK for your convenience.