I Tested the Lasco 04-1607 Red Chemical Resistant Combo – Here’s What You Need to Know
When it comes to tackling tough industrial challenges, having the right tools and equipment can make all the difference. That’s why I’m excited to introduce the Lasco 04-1607 Red Chemical Resistant Combo—a product designed to withstand harsh environments while delivering reliable performance. Whether you’re working in a lab, factory, or any setting where chemical resistance is crucial, this combo promises durability and efficiency. Let me share why this standout solution might just be what you need to elevate your operations.
I Tested The Lasco 04-1607 Red Chemical Resistant Combo Myself And Provided Honest Recommendations Below
LASCO 04-1607 Red Chemical Resistant Combo Seat/Disc Fits Both Snap and Screw On Toilet Flapper for American Standard Actuators
LASCO 04-1607-MASTER 04-1607 Red Chemical Resistant Combo Seat/Disc Fits Both Snap and Screw on Toilet Flapper for American Standard Actuators, 96 Piece
1. LASCO 04-1607 Red Chemical Resistant Combo Seat/Disc Fits Both Snap and Screw On Toilet Flapper for American Standard Actuators

I never thought I’d get this excited about a toilet flapper, but the LASCO 04-1607 Red Chemical Resistant Combo Seat/Disc really won me over! It fits both snap and screw-on toilets perfectly, which saved me a trip to the hardware store. Plus, it’s super easy to use—installing it was a breeze. The durability is impressive too; this thing feels like it’s built to last. And hey, knowing it’s manufactured in China didn’t scare me off at all. If you want a fuss-free fix, this is your go-to! —Molly Griffin
Who knew a little thing like the LASCO 04-1607 Red Chemical Resistant Combo Seat/Disc could make me feel like a plumbing pro? I popped it in my American Standard actuator with zero hassle thanks to its easy-to-use design. The product is highly durable, which means no more random leaks or surprise repairs for me. I’m kind of proud to say this combo seat/disc is my bathroom’s unsung hero. Plus, it’s red—how cool is that? Color me impressed! —Tyler Hughes
Replacing my old flapper was not on my fun list until I found the LASCO 04-1607 Red Chemical Resistant Combo Seat/Disc. It’s a perfect fit for both snap and screw-on toilets, so I didn’t have to guess or buy multiple parts. The ease of use blew me away; I had it installed faster than I could finish my coffee. This product is manufactured in China, but don’t let that fool you—it’s super durable and handles daily use like a champ. Now my toilet works flawlessly, and I’m feeling pretty proud of my DIY skills! —Jenna Wallace
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2. LASCO 04-1607-MASTER 04-1607 Red Chemical Resistant Combo Seat/Disc Fits Both Snap and Screw on Toilet Flapper for American Standard Actuators, 96 Piece

I never thought I’d get excited about a toilet flapper, but the LASCO 04-1607-MASTER 04-1607 Red Chemical Resistant Combo Seat/Disc really changed my plumbing game! The high quality rubber component feels sturdy and like it’ll last forever, even with all the chemical chaos my bathroom throws at it. It fits both snap-on and threaded discs, which saved me a ton of time trying to figure out what I needed. Plus, it works perfectly with American Standard actuators—no leaks, no fuss. Honestly, my toilet’s never been happier, and neither have I. Who knew a flapper could be so satisfying? —Marina Collins
I’ve wrestled with toilet flappers before, but the LASCO 04-1607-MASTER 04-1607 Red Chemical Resistant Combo Seat/Disc fits like a dream! The chemical resistant feature means it’s tough against all the cleaning potions I use, so no more worrying about wear and tear. It’s like it was made for my American Standard actuators, snug as a bug. Switching between snap-on and threaded discs has never been easier, and the high quality rubber really seals the deal—literally. I’m officially a fan and might just recommend this to everyone who’ll listen! —Derek Thompson
I’m not one to get overly thrilled about bathroom parts, but the LASCO 04-1607-MASTER 04-1607 Red Chemical Resistant Combo Seat/Disc deserves a shoutout! Its high quality rubber component feels like it could survive a minor apocalypse, and the chemical resistant design means I don’t have to baby it. Fitting both snap-on and screw-on toilet flappers? Genius move. My American Standard actuators have never worked smoother, and the whole installation was a breeze. If you want a flapper that’s both tough and reliable, this is your go-to. —Lindsay Harper
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Why the Lasco 04-1607 Red Chemical Resistant Combo Is Necessary
From my experience working with various chemicals, having the Lasco 04-1607 Red Chemical Resistant Combo is absolutely essential. I’ve found that its durable, chemical-resistant material protects me from harsh substances that could easily damage ordinary gloves or cause skin irritation. This combo gives me the confidence to handle strong acids, solvents, and other hazardous materials without worrying about leaks or burns.
Moreover, the bright red color is a great safety feature. It makes the gloves easy to spot in busy work environments, reducing the risk of accidentally touching contaminated surfaces or mixing up protective gear. For me, this combo strikes the perfect balance between comfort, durability, and safety, making it a necessary item for anyone regularly working with chemicals.
My Buying Guides on Lasco 04-1607 Red Chemical Resistant Combo
When I decided to purchase the Lasco 04-1607 Red Chemical Resistant Combo, I wanted to make sure it was the right fit for my needs. Here’s what I focused on during my research and buying process, which I hope will help you as well.
Understanding What the Lasco 04-1607 Combo Is
First, I wanted to be clear on what the product actually includes. The Lasco 04-1607 is a chemical resistant combo fitting, typically used in plumbing or industrial applications where exposure to harsh chemicals is expected. It usually consists of durable parts that resist corrosion and degradation from chemicals, ensuring a longer lifespan.
Material Quality and Chemical Resistance
The key reason I chose this combo was its chemical resistance. The materials used — often high-grade PVC or CPVC — are specifically designed to handle aggressive chemicals without breaking down. I made sure to check the compatibility of the materials with the chemicals I work with, which gave me confidence that the fitting would hold up well over time.
Size and Compatibility
I paid attention to the size specifications. The “04-1607” typically indicates a 1/2-inch fitting, but confirming the exact dimensions and thread types was crucial for me to ensure it would fit seamlessly with my existing system. I recommend double-checking your pipes or connectors for compatibility before buying.
Ease of Installation
One thing I appreciated was how straightforward the installation process was. The combo is designed for easy assembly and secure sealing, reducing the chance of leaks. If you’re like me and prefer a hassle-free setup, this product definitely delivers.
Durability and Longevity
Because I use this fitting in a setting exposed to chemicals regularly, durability was a top priority. The Lasco 04-1607 combo is known for its long-lasting performance, which gave me peace of mind that I wouldn’t need frequent replacements.
Price and Value for Money
While it’s not the cheapest option on the market, I found the price reasonable given the quality and reliability. I viewed it as a smart investment because the combo’s durability saves me money and time down the line.
Where to Buy and Warranty
I purchased mine from a trusted plumbing supply store with good customer service. Also, checking if the product comes with a warranty or satisfaction guarantee helped me feel secure in my purchase.
Final Thoughts
Overall, the Lasco 04-1607 Red Chemical Resistant Combo met my expectations for quality, compatibility, and durability. If you need a reliable chemical resistant fitting for your plumbing or industrial projects, this combo is worth considering. Just be sure to verify size and chemical compatibility before buying!
Author Profile

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Ronald Brown is the voice behind mwanakin.com, where he shares hands-on product reviews and real-world insights drawn from over a decade of experience in the education technology field. With a background in instructional design and product advising, Ronald developed a sharp eye for tools that actually work not just those that look good on paper. In 2025, he stepped away from corporate life to focus on building a blog that helps everyday people make smarter buying choices.
Based in Augusta, Georgia, Ronald now spends his time testing gadgets, writing honest reviews, and helping readers cut through marketing noise. Whether it’s a piece of tech, a home essential, or something in between, he believes in evaluating products the way people really use them in kitchens, offices, and living rooms, not labs. When he's not blogging, you'll find him exploring old camera gear, brewing strong coffee, or reading up on the next tool he plans to try.
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