Four Port – 2″ Dual Drain Technology Chapter four shows us Ella’s industry best four port dual drain system and why it is so much better than anything the competition can offer. Why Ella Walk-in Tubs 89 views FacebookTwitterLinkedinPin ItTumblrWhatsApp You may also like Why Ella Walk In Tubs Are the Best Choice 85 views Why Ella Walk-in Tubs «123Page 3 of 3 Strategic Therapeutic Jetting More Leveling Legs – Stronger Foundation