are you suppose to rinse the cartridge before putting it into the filter?

You are supposed to and I often do, either quick in the sink (chlorine in tapwater will nat harm it in any way in the slightes, except that 1/100 of the carbon might absorbe some chlorine, right, like it is supposed to do FOR WEEKS, not 30 secs. Next, there were a few "carbon Powders" available, they probably make carbon in every size you can think of from dust to huge blocks. So I sometimes don't rinse my pad if I am in a hurry (tank maintenance business) and think "carbon powder was good enough back then" and it didn't hurt anything (that I know of).

Whats the actual measurement of the filter? Size from top to bottom, from side to side, I know what power filters it fits, but I need the measurements

The product dimensions are 6.5 x 6.8 inches, with each filter being less than 1" thick.

Twice in 2019 i bought 6-packs of the c cartridges on amazon for about $7 a pack. why has the price of tripled?

"Amazon Sellers strive to offer competitive prices on all products they sell. They also need to make a profit so that they can continue to sell on Amazon. The price has likely increased due to increased costs of inventory, fees, and selling on Amazon."

Can you use these in Aqua-tech 30-60 filtration systems?

I would think it would be to long for that filter. But i am notpositive about my answer. Probly 95% positive the answer would be no, i have a filter on a smaller tank that i think has this filter system you are talking about and when i compare the two it would stick up out of filter so lid would definatly not go on it. I hope this helps!

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Marineland Rite-Size Cartridge C, 6-Pack

Marineland Rite-Size Cartridge C, 6-Pack

Product ID: 255207878

Details

Brand
MarineLand
Item weight
0.8 Ounces
Manufacturer
Marineland
UPC
047431502840
Unit count
6 Count

🧽Double-thick poly fiber mechanical filtration

⚗️Patented ribbed backing for max carbon contact

🛠️Pre-assembled for effortless installation

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Description

💧 Elevate your aquarium game with pristine water clarity—because your fish deserve the best!

COLOR CODED CONVENIENCE - Rite-Size packaging makes choosing the perfect cartridge a breeze—never guess again.
TRUSTED AQUATIC INNOVATION - Backed by 40+ years of Marineland expertise and NSF certification for reliable performance.
DUAL ACTION FILTRATION POWER - Mechanical debris trapping meets chemical purification with premium activated carbon.
CRYSTAL CLEAR WATER GUARANTEE - Patented ribbed backing ensures even carbon distribution for spotless clarity.
EFFORTLESS SNAP IN REPLACEMENT - Pre-assembled cartridges slide in fast and dry—no mess, no fuss.

Marineland Rite-Size Cartridge C (6-Pack) offers pre-assembled, easy-to-install replacement filters designed for Penguin Bio-Wheel Power Filters. Featuring double-thick poly fiber mechanical filtration and Black Diamond® Premium Activated Carbon with patented ribbed backing, these cartridges deliver superior mechanical and chemical filtration for crystal clear aquarium water. Color-coded packaging simplifies cartridge selection, and the product is NSF certified, reflecting Marineland’s 40+ years of trusted aquatic innovation.

Specifications

ASIN	B000256EKS
Allergen Information	Fish
Brand Name	MarineLand
Customer Reviews	4.7 4.7 out of 5 stars (17,068)
Global Trade Identification Number	00047431502840
Included Components	Marineland Penguin Power Filter Cartridge Rite-Size B (6 pk)
Item Type Name	Pet Supplies
Item Weight	0.8 Ounces
Manufacturer	Marineland
Manufacturer Part Number	PA0133-06-1
Model Number	PA0133-06-1
UPC	047431502840
Unit Count	6 Count

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