Guarantee
Warranty
Price
Replacement Filter Cost
Free Shipping
Free TDS Meter
Free Leak Detector
NU Aqua
120 Day Trial
3 year
$179.95
$65.95
Culligan
none
1 year
$1,495.95
$285
APEC
none
1 year
$229.95
$99.00
Ispring
none
1 year
$199.99
$78.09