Used Tusa RS-811
Certified used Tusa RS-811: serviced, bench-tested and warrantied by DescendAgain dealers.
A used Tusa RS-811 bought here is not a gamble. A DescendAgain dealer — a working dive service center — has stripped it, serviced it with the right parts, tuned it to the manufacturer's specification on an airflow bench, graded its cosmetics honestly and put the Certified Pre-Owned warranty behind it. The specs below are the numbers our technicians work to.
Nothing listed today? New gear is certified every week, and every sale of this model is recorded here so you know what it goes for.
Tusa RS-811 bench specs
What our technicians tune it to. Intermediate pressure is measured on the airflow bench during certification.
| Stage | Spec | Service |
|---|---|---|
| First stage RS-811 / RS-811S (1st stg "R-800") | Set IP to 140-145 psi, bed in 30-60 cycles; IP then drops to 135-140 psi (9.5 bar). Spec sheet: 125-145 psi (8.5-9.5 bar) over ambient after bedding in; never below 125 psi. | every 12 months annual overhaul; rental/salt/pool heavy use every 3-6 mo |
| Second stage RS-811 (S-11) | Primary: 1.0 to 1.4 in H2O; Secondary (Octopus): 1.5 to 2.0 in H2O (Magnehelic inhalation effect, tested with IP 135-145 psi) | every 12 months annual overhaul; rental/salt/pool heavy use every 3-6 mo |
Tusa RS-811 in stock now
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Questions divers ask about used gear
Is used scuba gear safe to buy?
Yes — when it has been serviced and tested. Life-support gear like a regulator should never be bought used without a full service, which is exactly what every DescendAgain dealer does before an item is certified and listed. You get gear that has been through a technician's bench, not a stranger's closet.
What does “certified” mean on DescendAgain?
A certified technician at a DescendAgain dealer has inspected the gear, serviced it with the correct parts, tested it beyond manufacturer specification (regulators on an airflow bench), graded its cosmetic condition honestly, and put the Certified Pre-Owned warranty behind it.
Does used dive gear from DescendAgain come with a warranty?
Yes. Every certified item carries the DescendAgain Certified Pre-Owned Warranty & Service Agreement — six months from the day it ships — honored by the dealer network.
How fast does it ship, and from where?
Orders ship tracked from the DescendAgain dealer that serviced the item, usually within five days, anywhere in the US.
Can I sell or consign my used dive gear?
Yes — use the Sell your gear page. A dealer inspects it, tells you honestly what it is worth, and either buys it outright or lists it for you.