Description
Practical value and everyday use
JCJ Enterprises M-1800 Mud Dauber Screen for Truma and Alde Water Heaters 110 mm (Airstream) is listed in Heaters & Furnaces. For a practical buying decision, start with this source-backed point: Application note: Keep pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances Stainless steel screen and springs Will not block air flow to and from your furnace Installs easily Compatible with Truma and Alde Water Heaters (Airstream) Keep pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances.
The source also records: Keep pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances. These stainless steel screens and springs will not block air flow to and from your furnace. Installs easily with tension springs and installation tool. Compatible with Truma and Alde Water Heaters (Airstream). Use this additional stated detail to judge day-to-day usefulness and package value: Will not block air flow to and from your furnace.
Value-focused decision
Compare those stated features and included items with the current on-page offer and the exact quantity needed. No performance claim is added beyond the source product record.
Complete source-backed product details
Keep pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances. These stainless steel screens and springs will not block air flow to and from your furnace. Installs easily with tension springs and installation tool. Compatible with Truma and Alde Water Heaters (Airstream).
Source product highlights
- Keep pesky mud daubers, mice, wasps, frogs, birds and spiders from nesting in your appliances
- Stainless steel screen and springs
- Will not block air flow to and from your furnace
- Installs easily
- Compatible with Truma and Alde Water Heaters (Airstream)




Vinnie –
Ok this came with no “understandable “ instructions. Nothing to prevent the edges from scratching the paint, and I had four people look at this and none, myself included can figure it out. So it’s sitting in my garage, waiting for it knight in shining armor to install this simple device.
Tony G. –
I was able to easily install on my travel trailer which has a Truma combination water heater and furnace. Though it talks about 110mm outlets it really does not tell how big it is in diameter. It is about 127mm in diameter, so it is a little bigger than you might expect. For the premium price paid I would have liked some sort of soft edge material between the screen’s metal edge and my fiberglass trailer exterior. I ended up slitting a small, approximately 1/8″, rubber windshield washer hose and installing it around the edge of the screen. Good fit and it protects the side of the trailer. The rounded ends of the springs were a little hard to attach to the screen so I bent them slightly to make them easier to get though the screen grids. Seems to have plenty of pressure to hold everything in place. Otherwise this was a good quality screen, though a little expensive, that should last for years.
MSC70Jim –
This is a perfect fit for the Trumi Combi water heater/furnace on my Thor Motor Coach. Yes, the round end of the included springs is difficult to attach to the screen, but a little adjustment to the end with a needle-nose pliers easily fixed that issue. I did add 1/8-inch edging to the metal edge of the screen touching the van surface to prevent any metal-on-metal wear.
BAE Productions –
I install this on my 2023 Winnebago Travato 59KL in August of 2023 after purchasing the van in April same year. I’ve put almost 10,000 miles on the RV and the screen has stayed exactly where I placed and installed it.The installation was fairly simple, although some may find it a challenge. The included install tool was a huge benefit.I did make one slight modification by taking a rubber tube, cutting it to the desired length then slitting it length wise to install on the surface edge of the screen. My thought was to provide some added protection, keeping the metal screen base from rubbing the paint off the van body. Seems to be working very well, and as you can see in the photo, blends nicely.
J Fox –
I like the construction of this cover, but the springs, instructions and tool to install it are awful.
Glenn –
Great item and fast shipping. Installation was simple and solid.
Francois Thuot –
Good product
Dale J. Benoit –
Strong screen. Fits my Truma Combi exhaust on coachman van. I think it should include rubber gasket to protect paint. I fabricated my own. But it keeps the pests out of the exhaust.
Lynn K –
Had a problem with mud daubers getting into my Truma exhaust. This screen is worth every dollar