"The man was very courteous, and answeredd my questions. The GS filters I have and added a few more. I hope they help, as previously they did not due to another problem here. Others I have known have not found them helpful, but I hope this time they are. I feel information should come with them."

"Everything came as promised."

"zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"

"great company...highly recommend!!!"

"Great meter and filters, went from ~1600-1700 to 70 on the meter."

"Fast shipping, meter works as promised, easy to use, "

"Shipped product on time, good quality"

"I was disappointed that I could not get the discount retroactively on Thanksgivings Weekend as I ordered 13 days before....otherwise shipment came as ordered and is working nicely"

"My order was delivered quickly and hassle free. Thanks."

"I am very satisfied with the items…however, more packing, bubble wrap & popcorn ought to have been placed in the medium size box…perhaps the next size bigger box would have been better because due to the weight of the total order and items and the box having minimal scotch tape used…it was perhaps luck the box was intact as the tape did not hold and the box was a little crumbled and pressure opened probably due to be tumbled about…thankfully there was no damage to my merchandise…otherwise items are working fine. When I order again in the future I do hope this matter is addressed"

"I will be back for more stuff"

"I like them both. And used them soon and they satisfied my need."

"A+++prompt seller! Great emails! Mint products! Highly recommend to all!"

"It would have been nice to receive some information on just how to use the products. I had researched this product online so I already knew what to expect, but maybe some customers may not have that knowledge. Charley"

"First Rate professional and on time, I can plan jobs around this sort of service!"