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Mono Jacket (For high profile sharkfin shafts)
Mono Jacket For high profile sharkfin shafts

Price Per Foot: $6.95
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Mono Jacket (For high profile sharkfin shafts)

Don’t confuse this with standard PVC tubing!

As many of you know, the practice of putting an outer jacket on the mono loop is not new. It has been done in the past (mainly in Europe) using PVC tubing. The reason this did not catch on in the USA was because it was just that, PVC tubing, and offered no protection for the mono that it was intended to protect. Now, fast forward to today’s technological advances in thermoplastic elastomers and we now have a flexible tubing to provide added protection for your mono loop.

The MAKO Spearguns Mono Jacket is specifically designed for use with high profile sharkfin tabs with pre drilled mono holes. Although the holes in the sharkfin tabs are filed smooth, the sharkfin tabs are thinner than the diameter of the spear. By putting this outer jacket on the mono (where it goes through the sharkfin), it will extend the life of the mono and reduce the possibility of breakage when passing through bones or gill plates.

Sold by the Foot.

Video: Extending the Life of Your Speargun Shooting Line

How To install the Mono Jacket on your High Profile Spears

The MAKO Spearguns Mono Jacket is produced by a fellow spearo who happens to be a chemical engineer. It is always a win, win situation when I can offer a quality product that is produced by a fellow spearo from our very own spearfishing community.

In comparing this high tech Thermoplastic Elastomer to standard PVC tubing, the Thermoplastic Elastomer, by far, outperforms PVC. Although they look alike, the similarities end there. Below are just some of the comparison results.

MAKO Spearguns Mono Jacket Tubing vs PVC Tubing


Thermoplastic Elastomer

Standard PVC

Taber Abrasion Resistance:


so low it is not measurable

Tensile Strength (Break)

6500 psi


Tensile Elongation (Break)



Tear Strength



Average Customer Review: Average Customer Review: 4.5 of 5 4.5 of 5 Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 This stuff is awesome!! August 16, 2018
Reviewer: Julez from SD from San Diego , CA United States  
I’ve used pvc or vinyl not sure what it was, and it wore out super fast. This stuff seems to hold up super well, even being in the sun a lot. It’s on my reef/kelp forest gun which sees the most action out of all my guns and holds up very well after many shots fired. 5/5 stars!

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  0 of 0 people found the following review helpful:
4 of 5 Mono jacket May 5, 2015
Reviewer: C W from NJ United States  
Nice protection for the mono. works well with the jbl elite shark fins also

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