Mares Cave/Finger SS316 Coated Spool

Mares | SKU: 41579260MT

Refer & Earn

Sold out

$102.60

Shipping calculated at checkout.

Size

60MT 45MT 30MT 15MT

Pick accessories — 90% off with your $50+ order

Start $501 pick $1252 picks

DiveCatalog DIN Cap for 1st Stage (Female) for Scuba Diving Tanks - Scuba Essentials
$19.95$2.00

1
DiveCatalog Hose Clamp for Scuba Diving - Scuba Essentials
$17.95$1.80

1
DiveCatalog Neoprene Mask Strap Cover
$17.00$1.70

1
DiveCatalog Silicone Mouthpiece Replacement w/ installation - Scuba Essentials
$14.95$1.50

1
DiveCatalog Rubber Tank Valve Protector for Scuba Diving Tanks - Scuba Essentials
$11.95$1.20

1

90% off applies automatically at checkout on orders of $50+ — or free for signed-in members. Not combinable with discount codes.

Payment & Security

Payment methods

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Product Information

The Mares Cave/Finger SS316 Coated Spool is a technical diving accessory made from SS316 stainless steel with a coating, built to hook onto a marking buoy or serve as a reference line spool during cave and wreck penetrations. It ships in four lengths, 15MT, 30MT, 45MT, and 60MT, so divers can match line length to the dive plan.

Who it is for

This spool is built for cave divers, wreck divers, and other technical divers who need a dependable way to launch a marking buoy or run a reference line through a penetration. The spool is made of SS316 stainless steel with a coating.

Key details

Material: SS316 stainless steel with a coating
Function: hooks to a marking buoy, launches a buoy, or carries a reference line through a cave or wreck penetration
Available lengths: 15MT, 30MT, 45MT, and 60MT, letting divers size the spool to penetration distance or buoy deployment needs
Product line: part of Mares' XR technical diving accessories range, listed under Diving Accessories / Buoys

Compatibility and sizing

The spool is sold by length rather than by diving system, with four options: 15MT, 30MT, 45MT, and 60MT. Choose the length based on your typical penetration distance or the depth at which you plan to send up a marking buoy.

DiveCatalog.com is an authorized Mares dealer and a dive shop in Irvine, California, open since 2003. Call 888-701-4017 or chat with us if you have questions about which spool length is right for your dive plan.

⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

What length spool should I choose for cave or wreck diving?

Mares offers this spool in 15MT, 30MT, 45MT, and 60MT; choose the length that suits your dive plan.

What is the Mares Cave/Finger spool used for?

It is used to hook onto and launch a marking buoy, or as a reference line spool carried during cave or wreck penetration dives. It is made of SS316 stainless steel with a coating.

What material is the Cave/Finger spool made of?

It is made of SS316 stainless steel with a coating, for buoy launching and reference line use in cave and wreck dives.

Are all four length options the same spool design?

Mares publishes this spool in four length options: 15MT, 30MT, 45MT, and 60MT, all described as the SS316 coated spool.

86%

(1177)

(114)

(37)

(16)

(31)

Excellent wetsuit but will it crush quickly like other wetsuits?

I purchased a BARE 5mm Reactive wetsuit (open box), which was like new, to replace my 1.5 yr old BARE 5mm Velocity wetsuit which had collapsed to only 2.5mm after 3 diving trips (~100 dives). The Reactive wetsuit is well constructed and very flexible. I had to increase the size of the Reactive suit, as it was smaller than the BARE Velocity suit of the same size. Tremendous customer service by Dive Catalog to exchange the wetsuit for proper size. I hope the Reactive suit does not crush so quickly like my other wetsuits (BARE, Henderson, Pinnacle). Hoping that the new technology in this suit will keep me warm below the thermocline.

Perfectly Built

Best of the many many diver hangers in my life. Easily supports my steel-plated BCD, while still donned with all of my accessories. No cracks, bends, or dents. Has even supported my BCD w/ a steel 100 tank attached (not recommended, for safety purposes, though).

Will continue to use this hanger for the long-term. No brainer.

Go-to Dive Hanger

This is a must-have for every diver. It's the quintessential hanger for all dive gear in one small package.

DiveCatalog's "Quick Dry Multi Accessory Dive Gear Hanger for Boots, Gloves, Hood" is set at a great price for a great product. Versatile enough that I've purchased extra hangers to organize my BMX racing gear.

Must-have for divers and anyone looking to organize their adventurous outdoor activities equipment.

Solid Hanger w/ Tons of Options

Does it's job and then some. The added accessory arms gives you options for a multitude of storage solutions. Solid build, solid pricing, must have for owns of dive gear.

New to this hanger...Now I'm a believer

Used tons of dive hangers, but never an upside down hanger. Game-changer for me. Will now add more of these in the near-future.

With it's swivel head design, it can cram itself into my tight dive locker, while still donning a ton of gear.

DiveCatalog's "Upside Down Drysuit Hanger w/ Regulator and Accessory Hooks" is a great product with solid construction at an affordable price. All of that with Dive Catalog's customer support/satisfaction guarantee.

Brand	Mares
Product line	XR technical diving accessories
Material	SS316 stainless steel with coating
Category	Diving Accessories / Buoys
Primary use	Marking buoy attachment and launch, reference line for cave/wreck penetration
Available lengths	15MT, 30MT, 45MT, 60MT
SKU, 15MT	41579215MT
SKU, 30MT	41579230MT
SKU, 45MT	41579245MT
SKU, 60MT	41579260MT