GoldenRod 725721 vs Eva-Dry E-333
Written by John Wren|

Choose Lockdown GoldenRod model 725721, UPC 661120257219, for the 12-inch rod, the 6-foot cord, and the bullet that says up to 100 cubic feet. The dimension cell says 17.4 inches. Measure the metal. Choose Eva-Dry E-333, UPC 832856000060, for the cordless silica unit whose bullet says up to 333 cubic feet. The floor-area cell says 333 square feet. Those are not the same room. A firearm stays at a licensed dealer.
Key takeaways
- 725721 is the 12-inch rod, UPC 661120257219, bullet coverage 100 cubic feet.
- The dimension cell says 17.4 inches. The wattage cell says 8 watts.
- E-333, UPC 832856000060, bullet coverage 333 cubic feet, up to 6 ounces.
- The floor-area cell says 333 square feet. The bullet says cubic feet.
Buy the Lockdown GoldenRod, model 725721, UPC 661120257219, when you want the 12-inch heated rod the bullet names, with a 110-120 volt plug, a 6-foot cord, and a coverage line of up to 100 cubic feet. Buy the Eva-Dry E-333, UPC 832856000060, when you want the cordless silica unit whose bullet says up to 333 cubic feet, up to 6 ounces of moisture, and a recharge instead of a cord in the closet. One makes a little heat while it is plugged in. The other hangs and then goes back to an outlet only to dry the beads. Neither one is a firearm.
Short version. A lockbox is the steel. A cable lock is a lock, not a climate. Foam plugs are ears. A lens pen is glass. Moisture is the only job of these two products, and the firearm, if you own one, stays at a licensed dealer or in the safe you already locked. These two products are a rod and a bead box.
The GoldenRod card that stays on ASIN B00D1WYXR0 is titled as a Lockdown GoldenRod dehumidifier rod. The model name says Golden Rod Dehumidifier 12" Rod. The model number and the part number are 725721. The UPC is 661120257219. The GTIN is 00661120257219. The color says Gold. The material says Metal. The included component says Dehumidifier rod. The number of items and the unit count say 1. The wattage cell says 8 watts. The voltage cell says 120 volts. The operation mode says Continuous. The special feature says Automatic Moisture Removal. The recommended use says Residential. The item weight says 7.04 ounces. The dimension cell says 1.1 by 17.4 by 1.1 inches.
The GoldenRod bullets say 12 inches long, a 110-120 volt AC plug, a 6-foot power cord, and protection up to 100 cubic feet. They say attachable legs and a quick plug so the cord can be run and then connected. They say it fits smaller areas of a safe. They say it removes moisture to limit rust. They say the family comes in 12, 18, 24, and 36 inch versions. They say a 1-year manufacturer warranty and point questions to the Lockdown site. The 12-inch bullet and the 17.4-inch dimension do not match. A rod that is 12 inches long is not a 17.4-inch width unless the cell measured the cord, the legs, or the mailer. Measure the metal. The 8-watt cell is not repeated in the bullets. Do not invent a higher wattage from a different length.

| Job | GoldenRod 725721 | Eva-Dry E-333 | Buy |
|---|---|---|---|
| A closed cabinet that can spare an outlet | Bullet: 12 inches, 110-120 volt plug, 6-foot cord, up to 100 cubic feet | Bullet: cordless in use, recharge later, up to 333 cubic feet | GoldenRod if the outlet is the plan. Eva-Dry if the cord cannot stay. |
| What the coverage cell says | Bullet says cubic feet. No square-foot cell. | Bullet says 333 cubic feet. Floor-area cell says 333 square feet. | Do not treat square and cubic as the same room. |
| Power while it is working | Plugged in. Voltage cell 120. Wattage cell 8. | Bullets: no cables or batteries while it absorbs. Wattage cell 22.5. Voltage cell 110. | Read the cordless bullet, then look at the watt cell. |
| How you know it is tired | No bead color in the bullets. It is a heater. | Description: beads go from orange to green. | Eva-Dry if you want a visible cue. |
| The barcode | UPC 661120257219, model 725721 | UPC 832856000060, model E-333, part E333 | An 18-inch or 24-inch rod is a different model. |
Lockdown 725721, UPC 661120257219, ASIN B00D1WYXR0. Eva-Dry E-333, UPC 832856000060, ASIN B000H0XFCS. A firearm is not in either box. A licensed dealer is where a firearm changes hands.
Who should buy the rod, and who should buy the E-333?
Buy 725721 if the cabinet has a way to get a cord in and you want a heater that stays on. The bullet's 100 cubic feet is the coverage sentence. A larger safe is a longer rod in the same family, and this card is the 12-inch model. The 17.4-inch dimension is the cell to measure past. The 7.04-ounce weight is light enough to check on a kitchen scale. The 1-year warranty is the bullet, not a lifetime claim. The legs and the quick plug are the install. If you cannot picture the cord leaving the cabinet without a hole you are willing to make, this is the wrong tool.
Buy the E-333 if you want a unit you hang, with no cord in the cabinet while it works, and you will take it out to recharge. The easy-use bullet says spill-free, non-toxic, and areas up to 333 cubic feet. The next bullet says 20-30 days and up to 6 ounces. Another bullet says up to 4 weeks. The description says 4 to 6 ounces and up to 10 years, and it says the beads turn from orange to green. The floor-area cell says 333 square feet. Cubic feet and square feet are not the same claim. A closet can be 333 cubic feet and still be a small room. A 333-square-foot room is a floor plan. Do not size a safe with the square-foot cell. The capacity cell says 6 ounces and the tank-volume cell says 6 fluid ounces. The dimension cell says 6.25 by 1.25 by 4.75 inches. The weight cell says 1.5 pounds. The wattage cell says 22.5 and the voltage cell says 110, on a product whose bullet says no cables or batteries required while it is absorbing. The recharge is the moment it wants power. The working hours are the cordless claim. Read both.
Do not buy either box because you wanted a safe. A rifle comparison is a different article, and the rifle stays at a licensed dealer. These cards do not ship a gun, a lock, or ammunition.
What the 725721 rod is actually for
A dehumidifier rod warms the air a little so moisture is less willing to sit on cold steel. The bullets describe that job as removing moisture and limiting rust, with continuous operation in the mode cell. It is not a bucket you empty. It is not a compressor. The 6-foot cord is the reach. The quick plug is how you mount the rod and still unplug the cord. The attachable legs are the stand. If the photo shows a gold tube, that is the color cell. If a listing photo grows a safe full of firearms, those firearms are not in the included-components line.
Model 725721 is the 12-inch reorder. The bullet that lists 12, 18, 24, and 36 inch versions is a family sentence. Buying this ASIN is buying the 12-inch specs: 100 cubic feet in the bullet, 8 watts in the cell, 120 volts in the cell, 110-120 on the plug bullet. An 18-inch rod that covers a larger cabinet is a different part. Do not stretch a 12-inch rod across a vault and call it the 36-inch model.
Do: put it low, where the bullet's legs can stand, and keep the cord's exit something you meant to cut or already have. Don't: cover it with a wool blanket. It is a heater. Don't: expect it to dry a wet basement. The bullet says up to 100 cubic feet. Don't: call 17.4 inches the rod until you have measured the metal and found 17.4 inches of metal.
What the E-333 is actually for
The E-333 is a silica box. The bullets say hang it in a car, a closet, a boat, a cabinet, a gun safe, or a gym bag. The safe is an example of a small closed space. The product is still the white unit, model E-333, part E333. UPC 832856000060 is the barcode. The color cell says White Sand. The included component is a hanging hook. The number of speeds says 1. The upper temperature cell says 105 degrees Fahrenheit. The dehumidification-capacity cell says 0.38 pints per day. Six ounces of holding capacity, from the bullet, is not the same sentence as 0.38 pints per day. A pint of water is 16 fluid ounces, so 0.38 pints is about 6 fluid ounces if you do the arithmetic. That lines up with a full charge, not with a promise of 6 ounces every day forever. The 20-30 day bullet and the 4-week bullet are the interval. The description's 10-year line is a lifespan claim, not a charge.
Orange to green is the description's indicator. When the beads go green, recharge. The cordless bullet and the voltage cell can both be true if the voltage is the recharge, not the hang. The card does not print the recharge hours. Do not invent a 10-hour figure from a blog. Plug it in when the color says so, somewhere the heat of a recharge is safe, then hang it again.
Do: use the hook and check the bead color. Don't: size a 333-square-foot living room off the floor-area cell and expect the 6-ounce bullet to dry it. Don't: submerge it. Don't: forget that a boat cabin and a gym bag are the bullets' examples, and a whole hull is not.
That clip is a roundup that talks through an Eva-Dry wireless unit and a Lockdown GoldenRod rod. It is not a lab reading of model 725721's 8-watt cell or of the E-333's 0.38-pint cell. A firearm shown in a safe in someone else's video is still not in these boxes.
What actually fails on these two cards
The rod fails when you needed 300 cubic feet and bought the 12-inch bullet. It fails when the cord cannot leave the cabinet. It fails when you trusted 17.4 inches as the heated length. It fails when the outlet is a daisy chain under a rug. It is a continuous heater. Give it a real receptacle.
The E-333 fails when you believed 333 square feet because the floor-area cell copied the model number. The bullet says cubic. It fails when the beads are green and you keep hanging it. It fails when you wanted a cord that stays on and you bought a recharge cycle. It fails when 1.5 pounds surprises you next to a unit the size cell says is 6.25 inches deep. Weigh it if that matters. The two products fail together if you buy both and stuff them in a drawer that did not need either.
What this comparison is not
It is not a safe, a lock, a firearm, or ammunition. It is not an 18-inch rod and it is not an E-500. It is not a whole-house dehumidifier. It is not a promise that rust already on steel will walk backward. Dry air slows the next rust. It does not sand the old rust.
Buy the rod for a plugged-in cabinet inside the 100-cubic-foot bullet. Buy the E-333 for a small closed space you can recharge on a schedule, and ignore the square-foot cell.
So which moisture tool should you buy?
Buy Lockdown model 725721, UPC 661120257219, when you want the 12-inch rod, the 6-foot cord, and the 100-cubic-foot bullet, and you will measure past the 17.4-inch cell. Buy the Eva-Dry E-333, UPC 832856000060, when you want the hanging silica unit, the orange-to-green cue, and the cubic-foot bullet, and you will not plan a room off the square-foot cell. The firearm stays at a licensed dealer. These two stay in the cabinet.
Frequently asked questions
GoldenRod or Eva-Dry for a closed cabinet?
725721 if the cabinet can keep a 110-120 volt cord plugged in and the space is inside the 100-cubic-foot bullet. E-333 if you need a cordless hang and you will recharge the beads later.
Is either product a firearm?
No. One is a heated rod. The other is a silica box. A firearm stays at a licensed dealer or in the safe you already locked.
Why does the rod measure 17.4 inches on the card?
The bullet says 12 inches. The dimension cell says 1.1 by 17.4 by 1.1 inches. Measure the metal. The cell may be the cord, the legs, or the mailer.
Does 333 square feet match the Eva-Dry bullet?
No. The bullet says up to 333 cubic feet. The floor-area cell says 333 square feet. Use the cubic-foot sentence. Do not size a room off the square-foot cell.
How do you know the E-333 is full?
The bullets say the beads change from orange to green. They do not print a recharge-hour count. Hang it for the 20-30 day bullet, then dry the beads when the color changes.
Which barcode do you photograph?
GoldenRod UPC 661120257219, model 725721. Eva-Dry UPC 832856000060, part E333. An 18-inch rod and an E-500 are different cards.


