Sump Help (Xaqua INOUT Overflow and Return - Two Little Fishies)

[JustenT]

Hello, i recently started building a larger reef tank.
I got a 25g Rimless tank, it came with a sump & stand.
Anyways i got it drilled and added a overflow.
I got the:

Xaqua INOUT Overflow and Return - Two Little Fishies

Free Shipping on Everything, Rewards, Free Swag, Price Matching & Free Returns.

www.saltwateraquarium.com

New to the saltwater community i know nothing about sumps, but only canister filters. I was wondering what size tubing do i use to take it down to the sump.
(The size below is a kit the brand of overflow offers for 60$, i assume i can get vinyl tubing a lot cheaper so i was wondering what size i grab)
Specifications
Return Hose Diameter - 0.6875" ID / 0.875" OD
Drain Hose Diameter - 1.3125" ID / 1.5" OD

Link to the kit the offer.

INOUT Hose Kit - XAqua

Perfectly Sized Tubing For XAQUA's INOUT Overflow SystemThis kit allows you to quickly plumb the INOUT Overflow and Return System to your sump and return pump. The black tubing keeps things looking clean and does not allow algae to grow in the tubing, that could cause a flow restriction. Soft...

www.bulkreefsupply.com

Also what size return pump do i grab, im aiming for low 300's GPH. Or a good flow for a mixed reef.
And what size return pump. Sorry for all of the questions i recently got into saltwater.

 

[Daniel@R2R]

this is an older thread, but I noticed it hasn't received an answer. Did you get it figured out?

 

[Blue Spot Octopus]

The tubing is difficult to figure out,I have that overflow, I will see if I can find the sizes.

 

[lakai]

11/16" ID - 7/8" OD use a 5/8" ID tubing
1 51/6" ID - 1.5" OD