This is an economic 2 pack filter bag. Replacement parts for NC22, NC51, NC51S, PT4i, PT7i, PTKM100, NC22, Nitro NC22, Nitro XL. Quality and affordable pool robot accessory by EZ Care. There are only 2 kinds of filter bag that fits Smartpool’s machines use. One kind of machine is marketed under Smartkleen, Nitro 22 or Nitro 31 or Kleen Machine sold in Costco years ago. These machines has 2 wheels at the front and 1 roller at the back. There is a foam ring on this roller. All these machines need filter bag item NC1017. he other type of machine use name such as Scrubber or Nitro 71, Nitro 7x etc. These machines have rollers at the front and the back, Tracks on both sides. All these machines need filter bag item, NC7120. The NC1017 comes with 3 different packaging. Single pack, item NC1017. 2 pack and item number is NC1017-2; 3 pack and its item number is NC1017-3 The NC7120 has single pack available only. Nitro is a registered trademark or trademark of Smartpool LLC in the US and/or other countries. Smartkleen is a registered trademark or trademark of Smartpool LLC in the US and/or other countries. Other names and products not mentioned above may be registered trademarks or trademarks of the respective companies.

Product Features

• Replacement filter bag for Smartkleen and others. Quality and affordable pool robot accessory by EZ Care
• economic 2 pack
• 10 micron filter bag able to catch as small as 2 micron dirt
• Made of durable, chemical resistant and reusable fabric
• This is not created or sold by Smartpool or Smartkleen who has their own definition of customer service and have different quality standard from ours