- Treats your black holding tank system with an all-natural enzyme cleaning treatment in as little as 12 – 24 hours!
- Lubricates valves and seals
- Easy to use dissolvable packet
- Septic tank safe
- Formaldehyde-free
- Biocide-free
- Zinc and copper free
- Recycle Ready Packaging within USA/Canada

Walex Commando Drop-ins Black Holding Tank and Sensor Cleaner – 12 pack
$24.99
Commando Black Tank & Sensor Cleaner is an easy-to-use quick-dissolving packet filled with a super-concentrated, scientifically natural enzyme formula that cleans tank walls and sensors and lubricates valves and seals. Residual waste caked to the tank walls creates foul odors and false sensor readings. A malfunctioning sensor is one of an RVers’ most frustrating issues because they don’t know when to empty their tank. One packet of Commando cleans the tank and restores sensor function in as little as 12 to 24 hours—no agitation or scrubbing required. Walex recommends the preventative use of Commando every three months to help keep the black tank in good working condition. Commando is now available in recycle-ready packaging. Customers can recycle the empty pouches in plastic bag recycling bins, thereby lowering their impact on the planet they love to explore.
Related products
Rechargeable Utility Light
Â
Lightweight, compact, and loaded with cool features, the CT6515 Rechargeable Utility Light is a great fit for anyone on the go. It boasts a 115 lumen top light, great as a handheld flashlight. The body of this light extends, and morphs into a 225-lumen lantern, providing bright illumination for work or leisure time. The powerful rechargeable lithium-ion battery can provide up to 12 hours of run time! The base of the Utility Light is magnetic, and offers recessed hooks, making hand-free use easy and versatile.The CT6515 also includes a battery level indicator and an onboard USB charging cord that wraps around the light and tucks away, always there when you need it. Last but not least, this little dynamo offers an outbound USB charge port to keep your compatible electronic devices charged and ready when you’re away from home or on the move.
Magic Mesh Repair Tape (2/pack)
Have a hole in a screen? Fear no more, this Magic Mesh screen tape is easy to use. Just trim to size and stick to any screen surface. This screen repair will save you money, let fresh air in, and last for years. This 9-ft roll will repair tears in any screen surfaces: window screens, door screens, tent mesh, RV screens and more.
FOCUSING HEADLAMP
![]()
The CT4200 Focusing Headlamp allows you to maintain a strong visual on your project while keeping your hands free to perform the real work. With CREE® LED, this powerful and sturdy light has a three-position switch and an adjustable angle head that can focus wherever needed. Made of aircraft-grade aluminum, it can also stand up to the harshest work conditions. Includes a limited lifetime warranty.
Cat® 200 Lumen Adjustable Neck Light – Hands-free Headlamp with Pivoting Heads – Water-Resistant
The innovative and sporty design of the CT7100 leaves you hands-free to work anywhere without irritation or stress to your forehead. Made of a durable and trustworthy ABS and nylon blend, it comfortably rests on your neck without leaving sweat marks and is easily cleaned. Whether you prefer the lowest (100 lumens) or highest (200 lumens) setting, this light adjusts to your power needs. Pivot the light heads up to 90° to create a wider beam. The neck light’s IPX4 rating means you can be sure your light stays on even when you are soaking in the rain.Indispensable for working in the garage or on a project in the house. Have it ready to walk the dog or for when the power goes out. Pack it with the camping essentials. You will never run out of applications this light is perfect for.
Recently Viewed
Cat® Fully-Welded 9-pc Garage Storage Cabinetry Set
Designed for users requiring enhanced drawer storage and equipment organization, the CAT® Fully-Welded 9-Piece Cabinetry Set brings tool-focused functionality and long-lasting durability to your garage. This version prioritizes drawer accessibility through a premium tool cabinet while still offering ample vertical storage and wall-mounted organization. Made entirely from welded steel, each unit arrives ready to install, delivering industrial-grade strength and convenience.
The thoughtfully arranged system includes lockers for tall gear, wall units for frequently accessed items, and a durable worktop ideal for mechanical repairs and project builds. With corrosion-resistant finishing and reinforced shelves, this set withstands the toughest environments while maintaining a clean, professional appearance.
CAT Lighting 100 Lumen LED Pocket Pen Light
CAT CT2210 Bright Rugged Tactical Pocket Pen Light, Gun Metal, Great for mechanics, nurses, doctors, HVAC, Plumbers, Electricians and outdoors.
Magic Mesh Deluxe Hands-Free Magnetic Screen Door
The Magic Mesh hands-free magnetic screen door opens easily when your hands are full. Closes itself with 18 powerful magnets. Can be set up in seconds – no tools required.
B’laster Industrial Graphite Dry Lubricant – 156g
B’laster Graphite Dry Lubricant reduces wear to extend equipment life. It creates a quick drying film that provides long-lasting lubrication. It’s recommended as a general maintenance lubricant on gaskets, transfer belts and conveyor belts. Also for use for high temperature, low load, locks, rollers, wheels, gears, chains and hoists.
Cat® Ready To Assemble Garage Storage 72″ Workbench
The CAT® RTA 72″ Workbench offers a large, strong, and dependable work surface for a wide range of tasks including repairs, assembly work, crafts, and general home projects. Built with a stable steel frame and a durable worktop, this bench is designed for users who need a heavy-duty, DIY-friendly workstation.
Its open design provides ample legroom and space for rolling tool cabinets underneath, while the powder-coated steel frame ensures long-lasting stability. Perfect for garages, workshops, and utility rooms, this workbench anchors your workspace with CAT® performance.
Cat® 200 Lumen Adjustable Neck Light – Hands-free Headlamp with Pivoting Heads – Water-Resistant
The innovative and sporty design of the CT7100 leaves you hands-free to work anywhere without irritation or stress to your forehead. Made of a durable and trustworthy ABS and nylon blend, it comfortably rests on your neck without leaving sweat marks and is easily cleaned. Whether you prefer the lowest (100 lumens) or highest (200 lumens) setting, this light adjusts to your power needs. Pivot the light heads up to 90° to create a wider beam. The neck light’s IPX4 rating means you can be sure your light stays on even when you are soaking in the rain.Indispensable for working in the garage or on a project in the house. Have it ready to walk the dog or for when the power goes out. Pack it with the camping essentials. You will never run out of applications this light is perfect for.
Walex Bio-Active Septic Tank Treatment Drop-ins – 12 pack
Monthly use of Bio-Active will help reduce surface and bottom solids in the septic tank. Buildup of surface and bottom solids can carry over to the leach fields and cause the leach field to become clogged. One the system in clogged the system has nowhere to drain and the tank fills up, causing backup in the home and wet areas in the yard. Bio-Active Septic Treatment restores billions of the biological population of good worker bacteria and enzymes which reduce solids in septic tanks. The beneficial bacteria and enzymes also get carried over to the leach field to reduce solids and prevent clogging. A clogging leach field is the biggest problem for septic systems, and the hardest and most costly to repair.
Heavy Bag Chain and Swivel
Designed for all Aqua Training Bags, the 3′ 9″ steel chain holds bags up to 200 pounds, while the integrated swivel ensures the chain won’t twist during your workout.
36″ Original Series Griddle with Omnivore Top
Get the classic 36″ griddle cart for your patio and start cooking all your favorite meals outdoors with your family and friends. You can even take this griddle on the road with the collapsible legs. With four independent heat zones you can cook a variety of foods, all at different temperatures!
Cat® Ready To Assemble Garage Storage 28″ Wall Cabinet
The CAT® RTA 28″ Wall Cabinet offers compact, elevated storage for garages, workstations, and utility rooms—perfect for keeping daily-use items within reach while freeing valuable floor space. Built from durable steel and finished with a corrosion-resistant powder coat, this cabinet stands up to moisture, dust, and heavy use.
Its adjustable interior shelf provides flexible storage for tools, hardware, fluids, and supplies, while the strong welded-style assembly ensures long-term reliability. Whether used alone or paired with a workbench, this wall cabinet enhances organization and workspace efficiency.
Cat® 15ft Heavy-Duty Adjustable Ratchet Tie Down
Secure your cargo with confidence using the Cat 15ft ratchet tie down with rubber-coated hooks. Featuring a 15-foot-long, 2-inch-wide strap, this heavy-duty tie down offers an impressive working strength of 1,667 pounds and a breaking strength of 5,000 pounds. Equipped with a double J hook for added reliability, it’s the ideal solution for secure transportation of heavy and bulky items. This heavy-duty strap isn’t just tough—it’s designed for convenience and safety. The rubber-coated hooks and built-in soft hook prevent scratches or scuffs, protecting both your cargo and your vehicle. The ergonomic, rubber-coated ratchet handle ensures a comfortable and slip-resistant grip, making adjustments effortless. Perfect for a variety of applications, this adjustable ratchet tie down is your go-to solution for moving furniture, securing sports gear, tying down ATVs, or transporting surfboards, motorcycles, and more.
Cat® 27 Ft Heavy-Duty Ratchet Tie Down
The Cat® 27ft Heavy Duty Ratchet Tie Down is built to handle your toughest jobs. With a work capacity of 3,300 lbs., this heavy duty ratchet tie down is perfect for securing heavy loads like equipment, furniture, and vehicles. Its extra-long 27ft length gives you plenty of room for large or bulky items, while the sturdy double-J-hooks provide a secure hold. The ratchet mechanism makes it easy to tighten and ensures your load stays safe and tight during transport. Made from high-quality, weather-resistant materials, this tie down can stand up to harsh conditions, offering reliability and durability for both personal and professional use. Whether you’re moving, hauling equipment, or securing cargo for a long trip, the Cat® ratchet tie down is the dependable work tool you need. It’s lightweight, easy to use, and designed for convenience, so you can rest assured that your load is always secure.
Cat® Ready To Assemble 7-pc Garage Storage Cabinetry Set
The CAT® Ready-To-Assemble 7-Piece Cabinet Set offers more storage capacity and flexibility for growing garage needs. With a combination of wall cabinets, a base unit, and a tall locker, this system provides balanced organization while remaining DIY-friendly. Each cabinet is built from high-strength steel panels that assemble into a durable, stable structure capable of handling everyday storage demands.
Perfect for medium-sized garages, workshops, or utility rooms, this set allows you to keep tools, chemicals, hardware, and household supplies neatly organized. Adjustable shelving and protective powder coating ensure long-term reliability. This 7-piece configuration is an excellent upgrade for users needing more capacity without moving to a full welded system.
Walex Commando Drop-ins Black Holding Tank and Sensor Cleaner – 12 pack
Commando Black Tank & Sensor Cleaner is an easy-to-use quick-dissolving packet filled with a super-concentrated, scientifically natural enzyme formula that cleans tank walls and sensors and lubricates valves and seals. Residual waste caked to the tank walls creates foul odors and false sensor readings. A malfunctioning sensor is one of an RVers’ most frustrating issues because they don’t know when to empty their tank. One packet of Commando cleans the tank and restores sensor function in as little as 12 to 24 hours—no agitation or scrubbing required. Walex recommends the preventative use of Commando every three months to help keep the black tank in good working condition. Commando is now available in recycle-ready packaging. Customers can recycle the empty pouches in plastic bag recycling bins, thereby lowering their impact on the planet they love to explore.





























Reviews
There are no reviews yet.