Product Information
Description
GLI ProMesh 20' x 40' Rectangle w/ Flush Side Step Premium Mesh Pool Safety Cover
Locks out everything but the rain.
The GLI ProMesh 20' x 40' premium mesh safety cover, SKU PST-202040RELHSF48PRMGRN, is the cover you install once a season and stop thinking about. Its patented tight-weave polypropylene blocks 98% of sunlight while rain and snowmelt drain straight through, so the pool under it stays clean and the top stays dry. It ships as a complete system: concrete deck anchors, stainless steel springs with covers, installation rod, tamping tool, strap hardware, and storage bag.
The 98% Shade Weave
Algae needs sunlight, and ProMesh starves it of one. GLI's patented mesh weave, covered by U.S. Patent No. 6,886,187, blocks 98% of sunlight from reaching the water, so the green bloom that usually greets you in spring never gets started. The same weave passes rain and snowmelt straight through while filtering out leaves, dirt, and debris. Nothing collects on top, so there is no standing water, no cover pump, and no swamp to vacuum out at opening.
Tensioned to Hold All Winter
ProMesh is GLI's premium mesh, built with extra-strength material for greater tear resistance than a standard mesh cover. Straps land on a 5' x 5' grid and clip to stainless steel springs that rates stronger than commercial grade, so tension spreads evenly across the whole span instead of loading a few points. Installed and tensioned correctly, the system performs to the ASTM F 1346-91 safety cover standard and stays taut under snow, wind, and foot traffic from wandering pets.
Nearly 50% Lighter Than Solid
Mesh keeps the weight down: ProMesh runs nearly 50% lighter than a comparable solid cover, and you feel it every fall and spring. One person can walk the cover on, hook the springs with the included installation rod, and have the pool secured in an afternoon, no crew required. When swim season returns, unhook, fold, and drop it in the included storage bag. The complete hardware system, anchors, tamping tool, rod, and bag, ships in the box.
Who It's For
Rectangle Pools
Sized for standard inground rectangles from 14' x 28' up to 25' x 50', with the finished cover cut larger to overlap the deck on every side.
Pools With Steps
Center step, 1' and 2' offset step, and flush side step versions follow your pool's real outline instead of forcing a compromise fit.
Families and Pet Owners
A tensioned, anchored barrier that performs to ASTM F 1346-91 stands between the water and curious kids, dogs, and wildlife all winter.
Snow-Belt Winters
Snowmelt drains through the weave instead of ponding, so ice sheets, sag, and spring bailing never enter the picture.
Why PST Customers Pick This
Complete Anchor Kit
Concrete deck anchors, an anchor tamping and installation tool, the spring installation rod, and all strap hardware ship in the box with every cover.
Upgraded Spring Package
Stainless steel springs rated stronger than commercial grade, each with a protective cover, hold even tension across the span season after season.
No Cover Pump Needed
Rain and snowmelt pass straight through the weave while the mesh screens out leaves and debris, so nothing ever ponds on top.
Cut for Your Outline
Rectangle, center step, 1' and 2' offset step, and flush side step versions match the cover to the pool you actually own.
Rated Safety Barrier
Performs to the ASTM F 1346-91 safety cover standard when every anchor is set and the cover is tensioned to GLI's instructions.
Simple Spring Removal
Unhook the springs with the rod, fold the lightweight mesh, and pack it into the included storage bag until fall.
Installation Notice
A safety cover protects only when it is installed correctly. Set every anchor in sound concrete or masonry decking, tension each spring evenly, and confirm the cover matches your pool's exact dimensions and step layout before ordering. ASTM F 1346-91 performance assumes installation per GLI's instructions.
Full Specifications
Frequently Asked Questions
Which step configuration do I need?
Match the cover to your pool's actual outline. A center step cover fits stairs centered on the end wall, 1' and 2' offset versions fit steps shifted off center, and flush side step versions fit steps built into the long side. The MPN encodes size, step layout, and color, so the cover arrives cut for that exact configuration.
Do I order my pool size or the cover size?
Order your pool's water dimensions, which are what the listing names. GLI cuts the finished cover larger so it overlaps the deck on every side, and the strap system spans that overlap to the anchors. If your pool is not a standard rectangle, measure it before ordering.
Can I install a safety cover myself?
The first install is a real project: you drill the anchor sleeves into the concrete deck, tamp them flush with the included tool, and set spring tension strap by strap. A handy owner can finish in an afternoon; plenty of customers have a pool pro handle the first fit. Every season after that, the cover goes on and off in minutes with the installation rod.
Is a mesh cover safe for kids and pets?
ProMesh performs to the ASTM F 1346-91 safety cover standard when properly anchored and tensioned, which is the industry benchmark for pool safety covers. It is a strong physical barrier, not a substitute for supervision or fencing.
Do I need a cover pump?
No. Rain and snowmelt drain through the mesh weave, so water never accumulates on top. That is the everyday advantage mesh holds over a solid cover.
What makes ProMesh better than GLI's Secur-A-Pool?
ProMesh is the premium line: a tighter, patented weave that blocks 98% of sunlight for cleaner spring water, extra-strength material with greater tear resistance, springs rated stronger than commercial grade, and a 20-year limited warranty with 5 full years versus 15 and 3 on Secur-A-Pool.
Close the Pool Right This Year
PST Pool Supplies is an authorized GLI Pool Products dealer. Every ProMesh cover ships as a complete system, anchors, springs, rod, and bag in the box.
Additional Info
| Category | Seasonal Pool Winterizing Pool Safety Covers |
| SKU | PST-202040RELHSF48PRMGRN |
| MPN | 202040RELHSF48PRMGRN |
| Manufacturer | GLI Pool Products |
| Weight | 73.5 lb |
Let customers speak for us
The bulb was lost in transit and PST reached out proactively to ask if I wanted a replacement shipped out!
part was an exact fit for my old spa, price was great thanks
Fast shipping and great customer support. I appreciate all of the help in getting my spa up and working.
The cord worked perfectly when I upgraded my older Balboa spa and pump.
I had a leak in which water was leaking out to the waste line. I could hear the water trickling in the waste line. The spider gasket in this kit resolved the issue.
Shipping and delivery were quick. Would definitely order again from PST.
Fit perfectly and works great.
Awesome item. I can control my spa from my phone!! Love it. Item was shipoed out and delivered so fast. Hooking it up was a breeze.
The support staff to make the orders were outstanding; even though I made a quantity error. And the timeliness of all the repair parts I needed to get the OLD Tiger Shark running as good as new was wonderful. My pool is crystal clear.
Fit perfectly on our bubbler lightv
The only place I could find with the part I needed. Delivery was fast and the price was great. Best pool supply store on the web.
Part was easy to find and arrived a couple of days earlier than originally scheduled.
The ceramic spindle in the center of the original impellor broke. Replacement with this part was super easy and pump performs like new.
