Sofnolime 797 is the CO₂ absorbent trusted by AP Diving rebreather owners worldwide. This 20 kg drum of 1–2.5 mm granules is the standard scrubber fill for every Inspiration and Evolution model — XPD, EVP, and EVO. Stocking a drum means you always have fresh absorbent on hand for scrubber repacks between dives, whether you're running a weekend of local dives or prepping for an expedition.

Key Features

• Purpose-built for CCR diving — Sofnolime 797 (also labeled 812) is the absorbent specified by AP Diving for all current Inspiration rebreathers
• Consistent 1–2.5 mm granule size — engineered for uniform packing density and predictable scrubber duration in AP Diving cartridges
• 20 kg bulk drum — approximately 8–10 full scrubber fills for a 2.5 kg cartridge (XPD/EVP) or 10–12 fills for a 2 kg cartridge (EVO), making it the most economical way to buy
• Long shelf life when sealed — store in a cool, dry place with the lid tightly closed to preserve reactivity

Specifications

Compatibility

Fits all AP Diving closed-circuit rebreathers including the Inspiration XPD, Inspiration EVP, Inspiration EVO, and legacy Inspiration Classic and Evolution models. Use with the RB09 (2.5 kg) or EV09 (2 kg) scrubber cartridges.

Important

Always check your scrubber absorbent for color change and moisture before each dive. Replace spent Sofnolime after every dive day or per your unit's recommended scrubber duration — do not reuse partially spent absorbent across multiple dive days. For detailed guidance, see the rebreather maintenance guide on our blog.

Need Sofnolime or other consumables? Contact Silent Diving — we keep stock in the US for fast shipping across the Americas.