The best deals on underpriced scuba regulators, dive computers, BCDs, and drysuits — surfaced from anywhere on the open web and validated against recent sold comps.
An impeccable Shearwater Perdix 2 with only 27 dives listed for $775 on ScubaBoard.
Why it's a deal:Priced at $775, this is a significant discount for a unit with only 27 dives in impeccable condition. It is priced well below common used market rates for low-hour Shearwater Perdix 2 units.
Watch out:Confirm the specific model variant and ensure the battery is holding a charge and the screen is free of internal condensation.
$775
−$25 under market
fair: $800–$1,100
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Impeccable condition. Clean. Only 27 dives. Comes with original box, all paperwork, and both sets of straps.View Deal
A Shearwater Perdix 2 Ti with original accessories listed for $850 on ScubaBoard.
Why it's a deal:Priced at $850, this is significantly below the market value for a Shearwater Perdix 2 Ti. Titanium models maintain a higher value than standard versions, and this price is roughly 30% below retail.
Watch out:Buyer should verify the operational status of the device and the actual cost/effort required to replace the scratched screen protector.
$850
−$50 under market
fair: $900–$1,100
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Used; some scratches on the replaceable screen protector. Includes case, original unused elastic straps, battery compartment tool, and 2 extra o-rings.View Deal
A 'like new' Shearwater Perdix 2 Ti listed for $777 on Craigslist.
Why it's a deal:Priced at $777, this Shearwater Perdix 2 Ti is significantly below typical used prices for the titanium bezel model, which usually command a premium over the standard bezel versions.
Watch out:The seller notes that one of the buttons was overly sensitive, which was resolved by changing the sensitivity setting to 'low'; the buyer should verify this functionality.
$777
−$73 under market
fair: $850–$1,100
🔥Pricing anomalies sell fast — similar deals moved in <5 min
A pre-owned Atomic Aquatics T3 Titanium Regulator set listed for $900 on eBay.
Why it's a deal:Priced at $900, this full 1st and 2nd stage set is significantly below the typical used market range for an Atomic T3, which usually lists around $1,100–$1,500 for complete sets in comparable condition.
Watch out:Verify recent professional service records, confirm the first- and second-stage serials and compatibility with your tank configuration, and request a function check or local shop inspection prior to purchase.
$900
−$200 under market
fair: $1,100–$1,500
🔥Pricing anomalies sell fast — similar deals moved in <5 min
A pre-owned DUI CF200X Drysuit listed for $950 on eBay.
Why it's a deal:Priced at $950, this is significantly below the typical used market range for a DUI CF200X, which generally sells for $1,200–$1,600 depending on condition.
Watch out:The seller is a high-volume thrift reseller rather than a dive specialist. The buyer should carefully verify the suit's airtight integrity, check for leaks in the seals and zippers, and request documentation of any recent pressure tests.
$950
−$250 under market
fair: $1,200–$1,600
🔥Pricing anomalies sell fast — similar deals moved in <5 min
A recently serviced ScubaPro MK25/S550 listed for $300 on ScubaBoard.
Why it's a deal:Priced at $300, this is significantly below the typical used market range for a recently serviced MK25/S550, which often sells for $400–$600.
Watch out:Verify the specific service records and the first stage configuration (DIN vs Yoke), as the listing does not explicitly specify the connection type.
$300
−$100 under market
fair: $400–$600
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Used, 2 years old, last serviced about 10 months ago.View Deal
A DUI CF200X Drysuit Signature series in great condition listed for $1,150.
Why it's a deal:Priced at $1,150, this is significantly below retail for the Signature series and sits at the lower end of the typical used market range for this premium model.
Watch out:The seller is a high-volume professional reseller rather than a private individual; verify the suit's specific dive history. Additionally, the seller is noted as being away until June 4, 2026, which will delay shipping.
$1,150
−$50 under market
fair: $1,200–$1,700
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Pre-owned, described by seller as 'Great !!'.View Deal
A Shearwater Perdix in excellent shape listed for $400 on ScubaBoard.
Why it's a deal:The asking price of $400 is significantly below the typical used market value for a Shearwater Perdix in excellent condition, which generally ranges from $500 to $600.
Watch out:Verify that the screen scratch does not impede legibility and note that replacement straps and a case will need to be purchased separately.
$400
−$50 under market
fair: $450–$600
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Excellent shape, one small scratch on screen, does not come with original case or straps.View Deal
A never-used Seaskin Nova Trilaminate Drysuit for $990 on ScubaBoard, about half of new retail price.
Why it's a deal:A never-used Seaskin Nova Trilaminate Drysuit listed at $990 is roughly 50% below typical new retail pricing for similar trilaminate suits, making it a strong value if the condition and sizing check out.
Watch out:Verify exact sizing/measurements, request photos of seals and zipper, ask for proof of purchase or receipt, and confirm seller contact/history to guard against misrepresentation.
$990
−$110 under market
fair: $1,100–$1,400
🔥Pricing anomalies sell fast — similar deals moved in <5 min
NEVER USED! Like new condition (previously observed in prior output; not present in current answer)View Deal
A 'like new' Santi E.lite Plus drysuit listed for $1,500 on ScubaBoard.
Why it's a deal:Priced at $1,500, this is significantly below the market value for a premium Santi E.lite Plus in like-new condition. The seller is motivated by relocation (Finland to Florida).
Watch out:Buyer should verify the sizing (LS) and shipping costs from the seller's current location.
$1,500
−$500 under market
fair: $2,000–$3,000
🔥Pricing anomalies sell fast — similar deals moved in <5 min
A like-new ScubaPro MK25/S600 bundle including a BCD and dive computer for just $700 on Facebook Marketplace.
Why it's a deal:The bundle is priced at $700 and includes an MK25/S600 regulator (est. $600-$800 used), a Glidepro BCD, and a Suunto Cobra 3 computer. The total value of these items separately in like-new condition would significantly exceed $1,000.
Watch out:The buyer should verify the fit of the Glidepro BCD (Size Large) and the functional status/battery life of the Suunto Cobra 3 dive computer.
$700
−$200 under market
fair: $900–$1,200
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Used - like new (Used a handful of times)View Deal
A flawless ScubaPro MK25 EVO used only once, listed for just $300 on Facebook Marketplace.
Why it's a deal:Listed at $300 for a 'flawless' unit used only once. Typical second-hand market value for a like-new ScubaPro MK25 EVO ranges from $400 to $600, making this a highly competitive price.
Watch out:The buyer should verify if the listing is for the first stage only or includes a second stage, and ensure the DIN/Yoke configuration matches their needs.
$300
−$100 under market
fair: $400–$600
🔥Pricing anomalies sell fast — similar deals moved in <5 min
A good condition DUI CF200 drysuit listed for just $500 OBO on Facebook Marketplace.
Why it's a deal:Listed at $500 OBO for a premium DUI suit. Even in used condition, this is significantly below the typical second-hand market value for DUI gear and a fraction of the original retail price.
Watch out:The seller states there were no leaks as of last season; the buyer should verify current seal integrity and perform a pressure test before purchase.
✨ Anomaly detected
$500
−$300 under market
fair: $800–$1,200
🔥Pricing anomalies sell fast — similar deals moved in <5 min
An excellent condition DUI CF200X drysuit, used only twice, listed for $760 on Craigslist.
Why it's a deal:Listed at $760 for a suit that retails for approximately $3,000 and has only been used twice. This is an extreme discount for a high-end crushed neoprene suit in this condition.
Watch out:The price is exceptionally low for a 'used twice' premium suit; buyers should verify the seals and check for leaks in person.
✨ Anomaly detected
$760
−$440 under market
fair: $1,200–$2,000
🔥Pricing anomalies sell fast — similar deals moved in <5 min
An incredibly low-priced DUI CF200X drysuit listed for $600 on Facebook Marketplace.
Why it's a deal:The asking price of $600 is remarkably low, representing a fraction of the $3,500+ retail cost and significantly undercutting typical used market values for this model (often $1,500-2,500).
Watch out:The price is exceptionally low for a DUI CF200X, which is a red flag for a potential scam. Verify the seller's identity, request a live video of the suit, and avoid sending money before physical inspection or using a secure payment method.
✨ Anomaly detected
$600
−$600 under market
fair: $1,200–$2,500
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Described as 'Great condition' by the seller.View Deal
Like new Santi Elite Plus drysuit for A$3,000 (~$1,950 USD) in Sydney—half of retail price with extensive accessories.
Why it's a deal:The asking price of A$3,000 (~$1,950 USD) is approximately 50% of the retail value (~$5.5k-6k) mentioned by the seller. The 'like new' state and the inclusion of $200+ in additional accessories (Bioneck seal, hanger, etc.) make this a significant below-market opportunity.
Watch out:Verify the specific sizing (Height 174–178 cm / Chest 112–116 cm) as drysuits are non-adjustable. Inspect the latex neck seal for any degradation or tears. Because this is a Facebook Marketplace transaction in Sydney, ensure a secure payment method or in-person inspection at the provided St Leonards location.
$1,950
−$550 under market
fair: $2,500–$3,500
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Santi E.lite+ Drysuit in 'Used - like new' condition, barely used. Features trilaminate lightweight material, integrated FlexSole boots, Kevlar kneepads, Latex neck seal, Halcyon p-valve, and Apeks release valve. Includes original Santi bag, hood, mask band, and maintenance kit, plus additional Bioneck seal and tools bag.View Deal
For Sale Scubapro MK25 EVO 1st and S600 2nd (Full octopus)
Serviced Scubapro MK25 EVO + S600 octopus for $650 — priced below typical completed sales and shipped from New Mexico with service noted.
Why it's a deal:The asking price of $650 for a Scubapro MK25 EVO first stage with a S600 second stage and full octopus is roughly 15–35% below typical recent completed listings on secondary markets (commonly seen around $800–$1,000 for similar serviced regulator sets). The seller-specified recent service and included pressure gauge reduce risk and justify treating this as a below-market opportunity, provided receipts and a pool test are obtained.
Watch out:Obtain the service invoice (work performed, service date, service facility), request serial numbers, confirm current DIN/yoke configuration if relevant, and request a recent pool/pressure test or allow a short in-person inspection. Confirm shipping and payment terms to avoid scams; seller notes 'ships from New Mexico'.
$650
−$50 under market
fair: $700–$1,000
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Seller states 'All just serviced. Has not been pool tested since service.' Full octopus with pressure gauge included.View Deal
I see it's unused and recently purchased — I'm ready to pay promptly if you can confirm serial and that it’s the unit pictured; will you include proof of purchase/warranty transfer info?
Why it's a deal:Zero-dive, like-new condition with a deep discount due to seller's buyer's remorse; sold significantly below typical early 2026 used prices.
Watch out:Listing is marked SOLD; if a similar one appears, verify serial numbers and warranty transferability. Request PayPal Goods/Services for protection.
$825
−$125 under market
fair: $950–$1,250
🔥Pricing anomalies sell fast — similar deals moved in <5 min
Like new; never been wet, zero dives, zero minutes dive time.View Deal
Frequently asked questions
How does TreasureScout find scuba gear deals?+
We scan the open web for regulator, BCD, computer, and exposure-suit listings, then flag the ones priced meaningfully below recent sold comps. Service history, hydro date, dive count, and brand-authorized service all factor into the score.
How is fair-market price estimated for scuba gear?+
We use recent finished sales for the same model and configuration — DIN vs yoke, cold-water service kit, etc. Recently-serviced regs from authorized techs price differently from "needs service" listings, and the comps reflect that.
Are listings verified before posting?+
Yes. Service intervals, hydro dates, dive counts, and brand-service receipts are cross-checked against the photos and seller copy. Out-of-service or expired-hydro gear is flagged in the watch-out section.