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TreasureScout
Active · posted 11d ago🤿Scuba Gear

ScubaPro MK25/S550

$300✨ 25% under market

−$100 vs. fair-price low

Fair-price range: $400–$600

View on ScubaBoard

A recently serviced ScubaPro MK25/S550 listed for $300 on ScubaBoard.

Why we flagged this

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.

Price context

Recent comparable units have changed hands between $400 and $600. At $300, this listing is $100 below the low end of fair-market value.

Sold-price history (last 90 days)

Each dot is a comparable unit that actually changed hands. The dashed line is this listing’s asking price.

This listing · $300Mar 14May 24$635$300

Recent sold comparables

Finished sales for similar units, sourced from public listings.

Sold datePriceCondition
May 24, 2026$410Good
May 13, 2026$530Used
May 9, 2026$515Used
May 5, 2026$485Good
Apr 23, 2026$545Good
Apr 5, 2026$635Used
Mar 29, 2026$470Very good
Mar 27, 2026$570Good
Mar 14, 2026$440Used

Specs

Condition
Used, 2 years old, last serviced about 10 months ago.
Source
ScubaBoard
Connection
DIN 300 bar
Service status
Current
Authorized service
Yes

Frequently asked questions

Why is the ScubaPro MK25/S550 a deal at this price?

Priced at $300, this is significantly below the typical used market range for a recently serviced MK25/S550, which often sells for $400–$600.

What should I verify before buying this ScubaPro MK25/S550?

Verify the specific service records and the first stage configuration (DIN vs Yoke), as the listing does not explicitly specify the connection type.

How is the fair-price range estimated?

We use recent finished sales for the same model, configuration, and condition tier — not asking prices. The fair-price range reflects where comparable units have actually changed hands in the last 90 days.

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