My Account
Shopping Cart

Flowmatic Systems FP-WP100 RV Winterizing Bypass Plate 3-5/8 Inch

Manufacturer

Flowmatic Systems

<h3>About Flowmatic Systems (FlowPur)</h3><p>For outdoor enthusiasts who refuse to compromise on water quality, <strong>Flowmatic Systems</strong> — best known by the brand name <strong>FlowPur</strong> — has built a focused reputation around one mission: delivering clean, safe drinking water wherever adventure takes you. Whether you're traveling cross-country in a recreational vehicle or spending weeks aboard a boat, FlowPur engineers its products specifically for the demanding, space-conscious environments that RV and marine lifestyles demand.</p><p>Unlike general household filtration brands, FlowPur's entire product lineup is oriented around the unique challenges of on-the-go water treatment. Campground hookups, marina tap water, and remote freshwater sources all present different contamination profiles — sediment, chlorine, bacteria, and other impurities that a standard under-sink filter isn't designed to handle in a mobile context. FlowPur addresses this with purpose-built <a href="/7349-flowmatic-systems-water-filters-treatment-systems-201159">water filters and treatment systems</a> that are compact, easy to install in tight quarters, and engineered to perform reliably on the road or at sea.</p><h3>Water Filtration Built for Life on the Move</h3><p>FlowPur's flagship filtration systems center on durable filter housings paired with high-performance replacement cartridges. The modularity of this design is a key advantage: as cartridges reach the end of their service life, users can swap in fresh media without replacing the entire unit — a practical and cost-effective approach well-suited to the RV and boating communities. The systems are designed to reduce sediment, chlorine taste and odor, and other common waterborne contaminants, giving travelers confidence in the water coming from their tap regardless of the source.</p><p>Because a filtration system is only as reliable as the fittings and hardware supporting it, FlowPur also offers a selection of plumbing parts and accessories that integrate directly with their filtration products. From housing brackets to inlet/outlet fittings, these components are designed with the same attention to the constraints of RV and marine plumbing runs — where space is tight, vibration is constant, and a leak can cause serious damage far from professional help.</p><h3>Why FlowPur Stands Out</h3><ul style="list-style:disc"><li><strong>Application-specific design:</strong> Products are engineered for RV and marine environments, not adapted from residential systems.</li><li><strong>Modular cartridge system:</strong> Replacement cartridges make ongoing maintenance straightforward and economical.</li><li><strong>Compact form factor:</strong> Housings and fittings are sized to fit within the limited plumbing spaces typical of motorhomes, travel trailers, and boats.</li><li><strong>Focused product line:</strong> A tight catalog means each product is refined rather than generic, with accessories and components that work seamlessly together.</li></ul><p>For anyone serious about water quality during travel — whether weekend camping trips or extended liveaboard life — Flowmatic Systems' FlowPur lineup offers a well-considered solution backed by focused engineering and a deep understanding of the mobile water treatment space.</p>

Part Number

FP-WP100
09/11/2036 1:33 AM
Sale Price

$21.39

In Stock (10+)

delivery box

Usually delivered within 2 days

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmatic Systems FP-WP100 Flow-Pur Winterizing Bypass Plate is an essential accessory for preparing your RV's water system for cold weather storage. This bypass plate measures 3-5/8 inches and provides a convenient method to isolate your water heater during the winterization process, saving you antifreeze and protecting your water heater tank.

Key Features:

  • 3-5/8 inch diameter bypass plate design for standard RV water heater installations
  • Allows bypass of water heater during winterization to prevent filling tank with antifreeze
  • Durable construction designed for repeated seasonal use
  • Easy installation over existing water heater connections
  • Saves money by reducing antifreeze consumption during winterization
  • Compatible with Flow-Pur and most standard RV water heater systems

This bypass plate is designed to fit between your RV's fresh water system and water heater, allowing you to divert flow away from the water heater tank when introducing antifreeze into your plumbing lines. By bypassing the water heater, you avoid filling the 6-10 gallon tank with expensive RV antifreeze while still protecting all other plumbing components from freeze damage.

great experience!!!!!!!

fast

I put my order at 7/29 and received nothing after the order. I emailed to ask my order status at 7/31 and at 8/1 I received my order. Pretty fast shipping. I am satisfied with the shipping and hope later tonight the product will work fine for my car!

so quick &amp; easy thank you

Great

Easy so far

Easy to use and find.

Great experience! VERY low price that beat everyone else!

Had exactly what I was looking for at the best price on the net. Shipped next day. Fuel Pressure Regulator was as described and met my needs.

Cheapest around, excellent shipping, easy to use website! ill be back!!!

Share icon
Return Policy
Returns are easy at Boatplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy