Hello William,
Which sedna011D distro plate do you have? Would you give us the model or picture?
If it is BPTA-WDPO11DE-PWM-V2, you can use the pump BPTA-PS1-PWM.
Any questions, feel free to contact us.
https://shop.bitspower.com/index.php?route=product/product&product_id=7215&search=S1