Re-think what you know about EcoTech Guards. These are the Next Generation!!! With a Direct Replacment for the OEM style Guards, these are not just another cover. No it's not a 2 piece either, no separating parts, nothing to fall out, get loose bend or break. This is just a 1 piece solution that locks into place just like the original, in place of the original. And best of all the holes aren't huge like many of the other guards out there, and the fronts design eliminates the possibility of any fish, snails or nems from getting in. From those times you temporarily shut of your pumps for feeding to those times where the powerful vortex creates a negative pressure system around the front edge of the impellers, you can rest assured that your livestock will be safe. And you will be satisfied. These come in any color your heart desires as well as tricolor combos 😉