Simply Birth has put together a kit for everything you will need if you have a waterbirth. 

1x Tub Liner OR Individual use pool (be sure to ask your midwife what liner to use)*
1x Pool Debris Net
1x Pool Thermometer
1x Faucet Adapter (Shower or Faucet) 
1x Eco-Friendly Hose (25 foot or 50 foot)

*We do not include BPIAB Regular, Mini, or La Bassine POOLS in this kit. Liners only except for Individual use tub. If you would like one of these brand name pools, please see the waterbirth section on the website. 

Optional - 
Pool Drain Pump
Electric Air Pump
Birth Pool In a Box Mini
Birth Pool In a Box Regular
La Bassine Birth Pool